High School Explorer
Every public high school in CT, with federal-data depth: 4-year graduation rate, AP rigor, SAT/ACT participation, enrollment trend, NAEP state context, and more — translated for parents.
Public + private high schools, every state.
Browse by state:
AKALARAZCACOCTDCDEFLGAGUHIIAIDILINKSKYLAMAMDMEMIMNMOMSMTNCNDNENHNJNMNVNYOHOKORPAPRRISCSDTNTXUTVAVIVTWAWIWVWY
339
high schools (public + private)
217
public (141 districts)
122
private (NCES PSS)
37,884
public grade‑12 students (seniors, latest year)
CT public HS enrollment trend
Across the 157,395 students enrolled in CT brick-and-mortar public high schools in 2021, the state contracted -1.0% by 2024 (155,833 students, -1,562 net). That's the demographic tide every individual school is fighting or riding.
Charter share of public HS enrollment (latest year): 1.4% (2,111 of 155,833 students). Virtual / nonclassroom-based schools excluded.
State context · NAEP 2024
How does CT compare nationally?
The National Assessment of Educational Progress (NAEP) is the only test given the same way to students in every state — making it the benchmark for state-to-state academic comparison. Below, this state's 8th-grade averages and where it sits on the 50-state distribution.
8th-grade math
280
+7 vs national avg (273)
8th-grade reading
268
+8 vs national avg (260)
Each dot is one state's 2024 NAEP 8th-grade averages. CT is highlighted in gold. Dashed lines mark national averages — being upper-right of both = above national in both subjects. Source: NAEP State Snapshot Reports. NAEP doesn't produce per-school scores — this is state-level context.
Where the students are
Top 10 cities by public-HS enrollment
| Bridgeport | 12 HS | 7,471 |
| New Haven | 12 HS | 6,071 |
| Waterbury | 6 HS | 6,046 |
| Stamford | 4 HS | 5,478 |
| Hartford | 13 HS | 5,162 |
| Danbury | 2 HS | 4,333 |
| Norwalk | 4 HS | 3,904 |
| New Britain | 3 HS | 3,635 |
| Meriden | 3 HS | 3,235 |
| East Hartford | 4 HS | 2,842 |
School-size distribution
Public, classroom-based · grades 9–12, latest year
Fastest-growing high schools
public, classroom-based · grade 9–12 · 2021→2024
| Academy of Computer Science and Engineering Capitol Region Education Council |
460→550 | +19.6% |
| Griswold High School Griswold School District |
508→606 | +19.3% |
| New London High School New London School District |
511→605 | +18.4% |
| Warren Harding High School Bridgeport School District |
1,124→1,324 | +17.8% |
| Ansonia High School Ansonia School District |
526→617 | +17.3% |
| Great Oaks Charter School Great Oaks Charter School District |
335→387 | +15.5% |
| Weaver High School Hartford School District |
625→721 | +15.4% |
| Central High School Bridgeport School District |
1,575→1,803 | +14.5% |
| Connecticut IB Academy East Hartford School District |
176→200 | +13.6% |
| South Windsor High School South Windsor School District |
1,281→1,442 | +12.6% |
Fastest-shrinking high schools
public, classroom-based · grade 9–12 · 2021→2024
| Science and Technology Magnet Pathway for High School Grades New London School District |
244→171 | -29.9% |
| Achievement First Hartford Academy Achievement First Hartford Academy District |
325→234 | -28.0% |
| Valley Regional High School Regional School District 04 |
545→429 | -21.3% |
| Westbrook High School Westbrook School District |
211→166 | -21.3% |
| Somers High School Somers School District |
438→359 | -18.0% |
| Bacon Academy Colchester School District |
696→572 | -17.8% |
| Tourtellotte Memorial High School Thompson School District |
223→184 | -17.5% |
| Lyme-Old Lyme High School Regional School District 18 |
444→367 | -17.3% |
| Capital Preparatory Magnet School Hartford School District |
191→162 | -15.2% |
| Bolton High School Bolton School District |
249→212 | -14.9% |
Every CT high school
Search by school, district, or city; sort any column. Trend = high-school enrollment change, first→latest year on file (public 2021→2024 via CCD grades 9–12; private 2018→2022 via PSS total). Omitted (—) for schools under 50 HS students, where a year-over-year percentage isn't reliable.
| High school | City | Type | HS enrollment (9–12) | 9–12 trend |
|---|---|---|---|---|
| A. I. Prince Technical High School Connecticut Technical Education and Career System |
Hartford | Public | 725 | -7.4% |
| AFIR-LISA'S House K–12 Judicial Centers |
Plainville | Public | — | — |
| Academy Of Our Lady Of Mercy, Lauralton Hall Catholic |
Milford | Private | 326 | -22.0% |
| Academy Of The Holy Family Catholic |
Baltic | Private | 34 | — |
| Academy of Aerospace and Engineering K–12 Capitol Region Education Council |
Windsor | Public | 426 | -0.9% |
| Academy of Computer Science and Engineering Capitol Region Education Council |
Enfield | Public | 550 | +19.6% |
| Academy of International Studies 6-12 K–12 Capitol Region Education Council |
Bloomfield | Public | 353 | -5.4% |
| Academy of Science and Innovation K–12 Capitol Region Education Council |
New Britain | Public | 424 | +0.7% |
| Achievement First Bridgeport Academy charter K–12 Achievement First Bridgeport Academy District |
Bridgeport | Public | 249 | -6.7% |
| Achievement First Hartford Academy charter K–12 Achievement First Hartford Academy District |
Hartford | Public | 234 | -28.0% |
| Adelbrook K–12 Nonsectarian |
Cromwell | Private | 73 | — |
| Adelbrook-The Learning Center Of East Hartford K–12 Nonsectarian |
East Hartford | Private | 18 | — |
| Aerospace/Hydrospace Engineering and Physical Sciences Magne Bridgeport School District |
Bridgeport | Public | 324 | +2.2% |
| Amistad Academy charter K–12 Amistad Academy District |
New Haven | Public | 269 | -1.8% |
| Amity Regional High School Regional School District 05 |
Woodbridge | Public | 1,347 | -3.4% |
| Ansonia High School Ansonia School District |
Ansonia | Public | 617 | +17.3% |
| Arts at the Capitol Theater Magnet School (ACT) Eastern Connecticut Regional Educational Service Center (EAS |
Willimantic | Public | 123 | -6.8% |
| Aspire Living & Learning Academy K–12 Nonsectarian |
Naugatuck | Private | 28 | — |
| Aspire Living & Learning Academy K–12 Nonsectarian |
Stamford | Private | 25 | — |
| Aspire Living And Learning Academy K–12 Nonsectarian |
Stratford | Private | 69 | — |
| Avon High School Avon School District |
Avon | Public | 946 | -0.9% |
| Bacon Academy Colchester School District |
Colchester | Public | 572 | -17.8% |
| Bais Chana Academy High School For Girls Other religious |
Orange | Private | 31 | — |
| Bais Yaakov Of Waterbury High School Other religious |
Naugatuck | Private | 43 | — |
| Baptist Bible Academy K–12 Other religious |
Waterford | Private | 50 | — |
| Bassick High School Bridgeport School District |
Bridgeport | Public | 1,075 | +10.9% |
| Ben Bronz Academy K–12 Nonsectarian |
West Hartford | Private | 47 | — |
| Benhaven Academy K–12 Nonsectarian |
Wallingford | Private | 30 | — |
| Benhaven School K–12 Nonsectarian |
Wallingford | Private | 40 | — |
| Berlin High School Berlin School District |
Berlin | Public | 836 | -3.5% |
| Bethel High School Bethel School District |
Bethel | Public | 1,097 | +11.4% |
| Bi-Cultural Hebrew Academy K–12 Other religious |
Stamford | Private | 301 | -1.6% |
| Biotechnology Research & Zoological Studies Magnet High Scho Bridgeport School District |
Bridgeport | Public | 376 | -6.2% |
| Bloomfield High School Bloomfield School District |
Bloomfield | Public | 528 | +0.6% |
| Bolton High School Bolton School District |
Bolton | Public | 212 | -14.9% |
| Bradley School-New London Regional K–12 Nonsectarian |
Uncasville | Private | 43 | — |
| Branford High School Branford School District |
Branford | Public | 738 | -5.9% |
| Bridgeport Military Academy Bridgeport School District |
Bridgeport | Public | 321 | +2.9% |
| Bridgeport Residential Center K–12 Judicial Centers |
Bridgeport | Public | — | — |
| Brien McMahon High School Norwalk School District |
Norwalk | Public | 1,739 | +4.4% |
| Bristol Arts and Innovation Magnet School K–12 Bristol School District |
Bristol | Public | 256 | — |
| Bristol Central High School Bristol School District |
Bristol | Public | 1,148 | -5.7% |
| Bristol Eastern High School Bristol School District |
Bristol | Public | 998 | -11.5% |
| Brookfield High School Brookfield School District |
Brookfield | Public | 849 | -6.0% |
| Brunswick School K–12 Nonsectarian |
Greenwich | Private | 1,003 | +1.9% |
| Bulkeley High School Hartford School District |
Hartford | Public | 552 | -10.4% |
| Bullard-Havens Technical High School Connecticut Technical Education and Career System |
Bridgeport | Public | 819 | -0.7% |
| Bunnell High School Stratford School District |
Stratford | Public | 982 | -7.4% |
| Canton High School Canton School District |
Canton | Public | 443 | -4.5% |
| Capital Preparatory Harbor School charter K–12 Capital Preparatory Harbor School District |
Bridgeport | Public | 226 | +5.6% |
| Capital Preparatory Magnet School K–12 Hartford School District |
Hartford | Public | 162 | -15.2% |
| Cardinal Kung Academy K–12 Catholic |
Stamford | Private | 104 | — |
| Cedarhurst School K–12 Nonsectarian |
Hamden | Private | 54 | -11.5% |
| Center for Global Studies Norwalk School District |
Norwalk | Public | 283 | +1.8% |
| Central Christian Academy K–12 Other religious |
Southington | Private | 124 | -1.6% |
| Central High School Bridgeport School District |
Bridgeport | Public | 1,803 | +14.5% |
| Chapel Haven Schleifer Center Nonsectarian |
New Haven | Private | 6 | — |
| Cheshire High School Cheshire School District |
Cheshire | Public | 1,208 | -8.0% |
| Choate Rosemary Hall Nonsectarian |
Wallingford | Private | 868 | +2.1% |
| Christian Heritage School K–12 Other religious |
Trumbull | Private | 386 | -8.3% |
| Classical Magnet School K–12 Hartford School District |
Hartford | Public | 313 | +12.2% |
| Clinical Day School - Manchester Memorial Hospital K–12 Nonsectarian |
Manchester | Private | 24 | — |
| Coginchaug Regional High School Regional School District 13 |
Durham | Public | 356 | -11.2% |
| Common Ground High School charter Common Ground High School District |
New Haven | Public | 221 | -2.6% |
| Conard High School West Hartford School District |
West Hartford | Public | 1,380 | -3.8% |
| Connecticut IB Academy East Hartford School District |
East Hartford | Public | 200 | +13.6% |
| Connecticut Junior Republic-Bristol K–12 Nonsectarian |
Bristol | Private | 6 | — |
| Connecticut River Academy at Goodwin University K–12 Goodwin University Educational Services (GUES) |
East Hartford | Public | 507 | +7.0% |
| Cooperative High School - Inter-District Magnet New Haven School District |
New Haven | Public | 560 | -2.6% |
| Coventry Academy K–12 Coventry School District |
Coventry | Public | 11 | — |
| Coventry High School Coventry School District |
Coventry | Public | 395 | -2.0% |
| Cromwell High School Cromwell School District |
Cromwell | Public | 515 | -5.5% |
| Crosby High School Waterbury School District |
Waterbury | Public | 1,453 | +8.2% |
| Danbury High School Danbury School District |
Danbury | Public | 3,612 | +7.1% |
| Daniel Hand High School Madison School District |
Madison | Public | 751 | -14.1% |
| Darien High School Darien School District |
Darien | Public | 1,382 | -2.8% |
| Derby High School Derby School District |
Derby | Public | 360 | -4.0% |
| Devereux Glenholme School K–12 Nonsectarian |
Washington | Private | 64 | -22.9% |
| E. C. Goodwin Technical High School Connecticut Technical Education and Career System |
New Britain | Public | 690 | +0.9% |
| E. O. Smith High School Regional School District 19 |
Storrs | Public | 1,010 | -7.7% |
| East Granby High School East Granby School District |
East Granby | Public | 249 | -1.2% |
| East Hampton High School East Hampton School District |
East Hampton | Public | 488 | -8.6% |
| East Hartford High School East Hartford School District |
East Hartford | Public | 1,776 | +8.8% |
| East Haven High School East Haven School District |
East Haven | Public | 879 | +1.5% |
| East Lyme High School East Lyme School District |
East Lyme | Public | 890 | -8.2% |
| East Windsor High School East Windsor School District |
East Windsor | Public | 259 | -7.5% |
| Easton Country Day School K–12 Nonsectarian |
Easton | Private | 144 | -2.7% |
| Eli Whitney Technical High School Connecticut Technical Education and Career System |
Hamden | Public | 586 | -13.3% |
| Elizabeth Ives School For Special Children K–12 Nonsectarian |
North Haven | Private | 16 | — |
| Ella T. Grasso Technical High School Connecticut Technical Education and Career System |
Groton | Public | 684 | +10.3% |
| Ellington High School Ellington School District |
Ellington | Public | 701 | -8.0% |
| Elm City College Preparatory School charter K–12 Elm City College Preparatory School District |
New Haven | Public | 187 | -5.6% |
| Emmanuel Christian Academy K–12 Other religious |
Newington | Private | 262 | — |
| Emmett O'Brien Technical High School Connecticut Technical Education and Career System |
Ansonia | Public | 618 | -9.9% |
| Enfield High School Enfield School District |
Enfield | Public | 1,426 | -5.0% |
| Engineering - Science University Magnet School K–12 New Haven School District |
West Haven | Public | 342 | +6.5% |
| Ethel Walker School K–12 Nonsectarian |
Simsbury | Private | 250 | — |
| Explorations charter Explorations District |
Winsted | Public | 77 | -12.5% |
| Fairfield College Preparatory Catholic |
Fairfield | Private | 757 | -8.4% |
| Fairfield Country Day School K–12 | Fairfield | Private | — | — |
| Fairfield Ludlowe High School Fairfield School District |
Fairfield | Public | 1,367 | -10.4% |
| Fairfield Warde High School Fairfield School District |
Fairfield | Public | 1,308 | -6.2% |
| Farmington High School Farmington School District |
Farmington | Public | 1,261 | -0.2% |
| Focus Center For Autism~Fresh Start School K–12 Nonsectarian |
Canton | Private | 13 | — |
| Forman School Nonsectarian |
Litchfield | Private | 235 | +5.4% |
| Francis T. Maloney High School Meriden School District |
Meriden | Public | 1,291 | +4.6% |
| Franklin Academy K–12 Nonsectarian |
East Haddam | Private | 79 | +3.9% |
| Fusion Academy - Greenwich K–12 Nonsectarian |
Stamford | Private | 21 | — |
| Fusion Academy Ff: Fairfield K–12 Nonsectarian |
Fairfield | Private | 41 | — |
| Futures School Nonsectarian |
West Hartford | Private | 37 | — |
| Gengras Center/Univ Of St Joseph K–12 Catholic |
West Hartford | Private | 138 | -6.1% |
| Glastonbury High School Glastonbury School District |
Glastonbury | Public | 1,737 | -6.7% |
| Global Experience Magnet School K–12 Bloomfield School District |
Bloomfield | Public | 97 | -5.8% |
| Granby Memorial High School Granby School District |
Granby | Public | 564 | -1.7% |
| Great Oaks Charter School charter K–12 Great Oaks Charter School District |
Bridgeport | Public | 387 | +15.5% |
| Great Path Academy at CT State Manchester Hartford School District |
Manchester | Public | 336 | +8.4% |
| Greater Hartford Academy of the Arts High School - Full Day Capitol Region Education Council |
Hartford | Public | 403 | -5.6% |
| Greens Farms Academy K–12 | Westport | Private | — | — |
| Greenwich Academy K–12 Nonsectarian |
Greenwich | Private | 792 | +0.9% |
| Greenwich High School Greenwich School District |
Greenwich | Public | 2,620 | -2.0% |
| Griswold High School Griswold School District |
Griswold | Public | 606 | +19.3% |
| Griswold Soule Street Academy K–12 Griswold School District |
Jewett City | Public | 18 | — |
| Grove School K–12 Nonsectarian |
Madison | Private | 85 | -30.9% |
| Guilford High School Guilford School District |
Guilford | Public | 1,008 | -7.4% |
| H. C. Wilcox Technical High School Connecticut Technical Education and Career System |
Meriden | Public | 753 | -4.4% |
| H. H. Ellis Technical High School Connecticut Technical Education and Career System |
Danielson | Public | 650 | -6.2% |
| Haddam-Killingworth High School Regional School District 17 |
Higganum | Public | 466 | -14.3% |
| Hall High School West Hartford School District |
West Hartford | Public | 1,332 | -6.7% |
| Hamden Hall Country Day School K–12 Other religious |
Hamden | Private | 571 | +5.5% |
| Hamden High School Hamden School District |
Hamden | Public | 1,609 | -5.0% |
| Hartford Magnet Trinity College Academy K–12 Hartford School District |
Hartford | Public | 519 | +4.2% |
| Hartford Public High School Hartford School District |
Hartford | Public | 698 | -9.4% |
| Hartford Residential Center K–12 Judicial Centers |
Hartford | Public | — | — |
| Henry Abbott Technical High School Connecticut Technical Education and Career System |
Danbury | Public | 721 | +1.8% |
| High Road School Of Hartford High Nonsectarian |
Hartford | Private | 20 | — |
| High Road School Of New London Md/High At Shiloh K–12 Nonsectarian |
New London | Private | 15 | — |
| High Road School Of Wallingford-Hs K–12 Nonsectarian |
Wallingford | Private | 60 | — |
| High School In The Community New Haven School District |
New Haven | Public | 251 | -6.3% |
| Highville Charter School charter K–12 Highville Charter School District |
New Haven | Public | 59 | -9.2% |
| Hill Regional Career High School New Haven School District |
New Haven | Public | 625 | -1.9% |
| Holy Cross High School Catholic |
Waterbury | Private | 527 | +19.0% |
| Hope Academy K–12 Nonsectarian |
Orange | Private | 61 | — |
| Hopkins School K–12 Nonsectarian |
New Haven | Private | 714 | +0.0% |
| Housatonic Valley Regional High School Regional School District 01 |
Falls Village | Public | 352 | +3.8% |
| Howell Cheney Technical High School Connecticut Technical Education and Career System |
Manchester | Public | 652 | -1.4% |
| Immaculate High School Catholic |
Danbury | Private | 389 | -19.8% |
| Information Technology & Software Engineering Magnet High Sc Bridgeport School District |
Bridgeport | Public | 386 | -4.0% |
| Intensive Education Academy In K–12 Nonsectarian |
West Hartford | Private | 68 | +33.3% |
| J. M. Wright Technical High School Connecticut Technical Education and Career System |
Stamford | Public | 494 | +6.5% |
| James Hillhouse High School New Haven School District |
New Haven | Public | 1,124 | -4.0% |
| Joel Barlow High School Regional School District 09 |
Redding | Public | 698 | -14.1% |
| John F. Kennedy High School Waterbury School District |
Waterbury | Public | 1,391 | +4.9% |
| Jonathan Law High School Milford School District |
Milford | Public | 776 | -6.1% |
| Joseph A. Foran High School Milford School District |
Milford | Public | 727 | -7.5% |
| Jumoke Academy charter K–12 Jumoke Academy District |
Hartford | Public | 21 | — |
| Kent School Other religious |
Kent | Private | 504 | -14.0% |
| Kent School - CT | Kent | Private | — | — |
| Killingly High School Killingly School District |
Dayville | Public | 744 | -1.2% |
| King School K–12 Nonsectarian |
Stamford | Private | 686 | — |
| Kingswood Oxford School K–12 Nonsectarian |
West Hartford | Private | 511 | +2.4% |
| Kinsella Magnet School of Performing Arts: High School Campu Hartford School District |
Hartford | Public | 110 | -21.4% |
| Kolbe Cathedral High School Catholic |
Bridgeport | Private | 326 | +8.3% |
| Lakeview High School Regional School District 20 |
Litchfield | Public | 583 | — |
| Learning Clinic K–12 Nonsectarian |
Brooklyn | Private | 30 | — |
| Ledyard High School Ledyard School District |
Ledyard | Public | 731 | -3.6% |
| Lewis S. Mills High School Regional School District 10 |
Burlington | Public | 614 | -7.9% |
| Lighthouse Voc-Ed Center (Site 3) K–12 Nonsectarian |
Niantic | Private | 32 | — |
| Lyman Hall High School Wallingford School District |
Wallingford | Public | 936 | -2.0% |
| Lyman Memorial High School Lebanon School District |
Lebanon | Public | 322 | +1.3% |
| Lyme-Old Lyme High School Regional School District 18 |
Old Lyme | Public | 367 | -17.3% |
| Manchester High School Manchester School District |
Manchester | Public | 1,703 | +0.1% |
| Marianapolis Prep School Catholic |
Thompson | Private | 321 | -19.1% |
| Marine Science Magnet High School Learn |
Groton | Public | 274 | +1.1% |
| Mark T. Sheehan High School Wallingford School District |
Wallingford | Public | 673 | -9.8% |
| Masuk High School Monroe School District |
Monroe | Public | 1,044 | -0.8% |
| Meliora Academy K–12 Nonsectarian |
Meriden | Private | 44 | — |
| Mercy High School Catholic |
Middletown | Private | 375 | -24.7% |
| Mesivta Yesodei Hatorah Other religious |
Naugatuck | Private | 60 | — |
| Metropolitan Business Academy New Haven School District |
New Haven | Public | 380 | -2.3% |
| Middletown High School Middletown School District |
Middletown | Public | 1,193 | -4.5% |
| Midstate Christian Academy K–12 Other religious |
Meriden | Private | 169 | +101.2% |
| Milestones Behavioral Services K–12 Nonsectarian |
Milford | Private | 60 | -37.5% |
| Milestones Behavioral Services K–12 Nonsectarian |
Orange | Private | 92 | -11.5% |
| Milford Christian Academy K–12 Other religious |
Milford | Private | 33 | — |
| Miss Porter'S School Nonsectarian |
Farmington | Private | 336 | +7.3% |
| Montville High School Montville School District |
Oakdale | Public | 491 | -0.6% |
| Nathan Hale-Ray High School East Haddam School District |
Moodus | Public | 262 | -2.6% |
| Naugatuck High School Naugatuck School District |
Naugatuck | Public | 1,202 | -6.2% |
| New Britain High School New Britain School District |
New Britain | Public | 2,521 | +6.7% |
| New Canaan High School New Canaan School District |
New Canaan | Public | 1,257 | -2.3% |
| New England Jewish Academy K–12 Other religious |
West Hartford | Private | 107 | +109.8% |
| New Fairfield High School New Fairfield School District |
New Fairfield | Public | 693 | +4.2% |
| New Haven Academy New Haven School District |
New Haven | Public | 321 | -3.3% |
| New London High School New London School District |
New London | Public | 605 | +18.4% |
| New London Visual and Performing Arts Magnet Pathway K–12 New London School District |
New London | Public | 118 | -9.9% |
| New Milford High School New Milford School District |
New Milford | Public | 1,150 | -11.7% |
| Newington High School Newington School District |
Newington | Public | 1,255 | -4.1% |
| Newtown High School Newtown School District |
Sandy Hook | Public | 1,254 | -10.2% |
| Nonnewaug High School Regional School District 14 |
Woodbury | Public | 647 | -3.6% |
| North Branford High School North Branford School District |
North Branford | Public | 432 | -2.5% |
| North Haven High School North Haven School District |
North Haven | Public | 944 | -3.0% |
| North Stonington Christian Academy K–12 Other religious |
North Stonington | Private | 35 | — |
| Northeast Cdt K–12 Nonsectarian |
Danielson | Private | 10 | — |
| Northwest Catholic High School Catholic |
West Hartford | Private | 444 | -15.3% |
| Northwestern Regional High School Regional School District 07 |
Winsted | Public | 536 | -11.1% |
| Norwalk High School Norwalk School District |
Norwalk | Public | 1,494 | -0.9% |
| Norwich Free Academy Norwich Free Academy District |
Norwich | Public | 2,020 | -2.6% |
| Norwich Technical High School Connecticut Technical Education and Career System |
Norwich | Public | 649 | -2.4% |
| Notre Dame Catholic High School Catholic |
Fairfield | Private | 456 | -12.8% |
| Notre Dame High School Catholic |
West Haven | Private | 518 | -9.8% |
| Oak Hill School K–12 Nonsectarian |
Hartford | Private | 116 | -4.1% |
| Oak Hill School At Ann Antolini School K–12 Nonsectarian |
New Hartford | Private | 127 | — |
| Oak Hill School At Haddam-Killingworth High School K–12 Nonsectarian |
Higganum | Private | 9 | — |
| Old Saybrook Senior High School Old Saybrook School District |
Old Saybrook | Public | 338 | -5.8% |
| Oliver Wolcott Technical High School Connecticut Technical Education and Career System |
Torrington | Public | 643 | +0.9% |
| Options Educational Services K–12 Nonsectarian |
Hartford | Private | 21 | — |
| Orville H. Platt High School Meriden School District |
Meriden | Public | 1,191 | +11.5% |
| Oxford Academy | Westbrook | Private | — | — |
| Oxford High School Oxford School District |
Oxford | Public | 476 | -11.2% |
| P-TECH Norwalk Norwalk School District |
Norwalk | Public | 388 | -1.5% |
| Parish Hill High School K–12 Regional School District 11 |
Chaplin | Public | 111 | -11.2% |
| Pathways Academy of Technology and Design Hartford School District |
East Hartford | Public | 359 | -12.4% |
| Pierrepont School K–12 Nonsectarian |
Westport | Private | 138 | -1.4% |
| Pine Point School K–12 | Stonington | Private | — | — |
| Plainfield High School Plainfield School District |
Central Village | Public | 515 | -2.8% |
| Plainville High School Plainville School District |
Plainville | Public | 674 | +2.9% |
| Platt Technical High School Connecticut Technical Education and Career System |
Milford | Public | 749 | -7.1% |
| Pomfret School Nonsectarian |
Pomfret | Private | 368 | +3.7% |
| Pomperaug Regional High School Regional School District 15 |
Southbury | Public | 970 | -13.6% |
| Portland High School Portland School District |
Portland | Public | 323 | -2.7% |
| Praise Power & Prayer Christian School K–12 Other religious |
Windsor | Private | 41 | — |
| Putnam High School Putnam School District |
Putnam | Public | 253 | +2.4% |
| Putnam Science Academy Nonsectarian |
Putnam | Private | 120 | +114.3% |
| Quinebaug Middle College Eastern Connecticut Regional Educational Service Center (EAS |
Danielson | Public | 144 | -7.1% |
| REGIONS secure Bridgeport K–12 Judicial Centers |
Bridgeport | Public | — | — |
| REGIONS secure Hamden K–12 Judicial Centers |
Hamden | Public | — | — |
| REGIONS secure Hartford K–12 Judicial Centers |
Hartford | Public | — | — |
| REGIONS staff secure Waterbury K–12 Judicial Centers |
Waterbury | Public | — | — |
| REGIONS staff-secure Hartford K–12 Judicial Centers |
Hartford | Public | — | — |
| RHAM High School Regional School District 08 |
Hebron | Public | 714 | -13.0% |
| Raymond Hill School K–12 Nonsectarian |
New Britain | Private | 82 | -18.0% |
| Ridgefield High School Ridgefield School District |
Ridgefield | Public | 1,411 | -6.9% |
| River Run Academy At The Susan Wayne Ctr Of Excel K–12 Nonsectarian |
Thompson | Private | 35 | — |
| Robert E. Fitch High School Groton School District |
Groton | Public | 942 | -7.3% |
| Rockville High School Vernon School District |
Vernon | Public | 995 | +3.8% |
| Rocky Hill High School Rocky Hill School District |
Rocky Hill | Public | 738 | +4.7% |
| Sacred Heart Academy Catholic |
Hamden | Private | 354 | -27.5% |
| Sacred Heart Greenwich K–12 Catholic |
Greenwich | Private | 646 | — |
| Salisbury School Other religious |
Salisbury | Private | 307 | +5.9% |
| Science and Technology Magnet Pathway for High School Grades New London School District |
New London | Public | 171 | -29.9% |
| Seymour High School Seymour School District |
Seymour | Public | 604 | +0.0% |
| Shelton High School Shelton School District |
Shelton | Public | 1,308 | +2.6% |
| Shepaug Valley School K–12 Regional School District 12 |
Washington | Public | 352 | +11.4% |
| Simsbury High School Simsbury School District |
Simsbury | Public | 1,187 | -6.8% |
| Solterra Academy K–12 Nonsectarian |
New Britain | Private | 141 | +10.2% |
| Somers High School Somers School District |
Somers | Public | 359 | -18.0% |
| Sound School New Haven School District |
New Haven | Public | 332 | -2.4% |
| South Kent School Other religious |
South Kent | Private | 115 | -21.2% |
| South Windsor High School South Windsor School District |
South Windsor | Public | 1,442 | +12.6% |
| Southington High School Southington School District |
Southington | Public | 1,905 | -2.4% |
| Sport and Medical Sciences Academy K–12 Hartford School District |
Hartford | Public | 298 | -11.3% |
| St Bernard School K–12 Catholic |
Uncasville | Private | 365 | +9.0% |
| St Catherine Academy K–12 Catholic |
Fairfield | Private | 15 | — |
| St Joseph High School Catholic |
Trumbull | Private | 768 | -3.8% |
| St Lukes School K–12 Nonsectarian |
New Canaan | Private | 592 | +3.1% |
| St Paul Catholic High School Catholic |
Bristol | Private | 420 | — |
| St Thomas More School K–12 Catholic |
Oakdale | Private | 144 | +73.5% |
| Stafford High School Stafford School District |
Stafford Springs | Public | 357 | -2.7% |
| Stamford High School Stamford School District |
Stamford | Public | 2,102 | +6.6% |
| Staples High School Westport School District |
Westport | Public | 1,629 | -5.0% |
| Stonington High School Stonington School District |
Pawcatuck | Public | 543 | -9.3% |
| Stratford High School Stratford School District |
Stratford | Public | 1,150 | +7.8% |
| Suffield Academy Nonsectarian |
Suffield | Private | 418 | +1.0% |
| Suffield High School Suffield School District |
West Suffield | Public | 641 | -10.7% |
| Terryville High School Plymouth School District |
Terryville | Public | 337 | -8.9% |
| The Academy of Information Technology & Engineering Stamford School District |
Stamford | Public | 658 | +5.3% |
| The Bridge Academy charter K–12 The Bridge Academy District |
Bridgeport | Public | 181 | +2.8% |
| The Bridge at ACES K–12 Area Cooperative Educational Services |
Hamden | Public | 13 | — |
| The Cheshire Academy Nonsectarian |
Cheshire | Private | 288 | -32.1% |
| The Cornerstone Christian School K–12 Other religious |
Manchester | Private | 133 | -14.7% |
| The Foundation School High School Nonsectarian |
Milford | Private | 30 | — |
| The Frederick Gunn School Nonsectarian |
Washington | Private | 315 | +10.5% |
| The Gilbert School K–12 The Gilbert School District |
Winsted | Public | 274 | +1.9% |
| The Greenwich Country Day School K–12 Nonsectarian |
Greenwich | Private | 1,254 | +62.0% |
| The Hotchkiss School Nonsectarian |
Lakeville | Private | 622 | +1.3% |
| The Loomis Chaffee School Nonsectarian |
Windsor | Private | 703 | -0.3% |
| The Marvelwood School Nonsectarian |
Kent | Private | 117 | -17.0% |
| The Master'S School K–12 Other religious |
West Simsbury | Private | 158 | -36.3% |
| The Morgan School Clinton School District |
Clinton | Public | 473 | -11.4% |
| The Pinnacle School K–12 Nonsectarian |
Stamford | Private | 69 | — |
| The Spire School K–12 Nonsectarian |
Stamford | Private | 40 | — |
| The Taft School Nonsectarian |
Watertown | Private | 600 | +1.0% |
| The Webb School In The Valley K–12 Nonsectarian |
Avon | Private | 25 | — |
| The Williams School K–12 Nonsectarian |
New London | Private | 185 | -20.3% |
| The Woodhall School Nonsectarian |
Bethlehem | Private | 42 | — |
| The Woodstock Academy The Woodstock Academy District |
Woodstock | Public | 1,011 | -4.2% |
| Thomaston High School K–12 Thomaston School District |
Thomaston | Public | 182 | -3.7% |
| Three Rivers Middle College Magnet School Learn |
Norwich | Public | 92 | +39.4% |
| Tolland High School Tolland School District |
Tolland | Public | 639 | -13.5% |
| Torrington Christian Academy K–12 Other religious |
Torrington | Private | 234 | — |
| Torrington High School Torrington School District |
Torrington | Public | 1,034 | +9.4% |
| Touchstone School Nonsectarian |
Litchfield | Private | 2 | — |
| Tourtellotte Memorial High School Thompson School District |
North Grosvenordale | Public | 184 | -17.5% |
| Trumbull High School Trumbull School District |
Trumbull | Public | 2,152 | +0.6% |
| University High School of Science and Engineering Hartford School District |
Hartford | Public | 406 | -1.7% |
| Valley Regional High School Regional School District 04 |
Deep River | Public | 429 | -21.3% |
| Vinal Technical High School Connecticut Technical Education and Career System |
Middletown | Public | 522 | +6.7% |
| W. F. Kaynor Technical High School Connecticut Technical Education and Career System |
Waterbury | Public | 831 | +5.3% |
| Warren Harding High School Bridgeport School District |
Bridgeport | Public | 1,324 | +17.8% |
| Waterbury Arts Magnet School K–12 Waterbury School District |
Waterbury | Public | 476 | +0.6% |
| Waterbury Career Academy Waterbury School District |
Waterbury | Public | 699 | -10.2% |
| Waterford Country School K–12 Nonsectarian |
Quaker Hill | Private | 66 | +10.0% |
| Waterford High School Waterford School District |
Waterford | Public | 713 | -4.7% |
| Watertown High School Watertown School District |
Watertown | Public | 693 | -10.8% |
| Watkinson School K–12 Nonsectarian |
Hartford | Private | 216 | -8.9% |
| Weaver High School Hartford School District |
Hartford | Public | 721 | +15.4% |
| West Haven High School West Haven School District |
West Haven | Public | 1,813 | +9.2% |
| Westbrook High School Westbrook School District |
Westbrook | Public | 166 | -21.3% |
| Westhill High School Stamford School District |
Stamford | Public | 2,224 | -2.7% |
| Westminster School Nonsectarian |
Simsbury | Private | 412 | — |
| Weston High School Weston School District |
Weston | Public | 691 | -9.1% |
| Westover School Nonsectarian |
Middlebury | Private | 188 | -6.5% |
| Wethersfield High School Wethersfield School District |
Wethersfield | Public | 1,146 | +0.4% |
| Wheeler High School K–12 North Stonington School District |
North Stonington | Public | 228 | +6.0% |
| Whiting Forensic Hospital Department of Mental Health and Addiction Services |
Middletown | Public | — | — |
| Whitney Hall School K–12 Nonsectarian |
Hamden | Private | 51 | -21.5% |
| Wilbur Cross High School New Haven School District |
New Haven | Public | 1,742 | +11.5% |
| Wilby High School Waterbury School District |
Waterbury | Public | 1,196 | +4.9% |
| Wilton High School Wilton School District |
Wilton | Public | 1,202 | -1.4% |
| Windham High School Windham School District |
Willimantic | Public | 633 | +2.6% |
| Windham Technical High School Connecticut Technical Education and Career System |
Willimantic | Public | 510 | +2.0% |
| Windsor High School Windsor School District |
Windsor | Public | 1,095 | +2.1% |
| Windsor Locks High School Windsor Locks School District |
Windsor Locks | Public | 383 | -10.3% |
| Wolcott High School Wolcott School District |
Wolcott | Public | 611 | -9.9% |
| Woodhouse Academy Nonsectarian |
Milford | Private | 24 | — |
| Woodland Regional High School Regional School District 16 |
Beacon Falls | Public | 571 | -9.9% |
| Wooster School K–12 Other religious |
Danbury | Private | 322 | -12.0% |
| Xavier High School Catholic |
Middletown | Private | 644 | -3.6% |
| Yeshiva Gedolah Of Waterbury- Mesivta Durham Other religious |
Waterbury | Private | 208 | — |
Sources: Public — NCES Common Core of Data via the Urban Institute API; "HS enrollment" = grades 9–12 (so K–12/combined records aren't inflated by their elementary grades); trend 2021–2024. Private — NCES Private School Universe Survey (PSS); enrollment is total students (PSS has no grade detail); trend 2018→2022 (biennial). "High school" = offers grade 12. Winners/losers shown for public only (comparable annual span) and exclude very small/near-closure schools.