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🏆 Top 10 in San Mateo County — UC Reach Score

San Mateo County · 2025 · ≥50 seniors
What is UC Reach? UC Reach = unique top-6 UC admits ÷ senior class size — the share of a school's entire graduating class that reaches the six most selective UCs (Berkeley, UCLA, San Diego, Santa Barbara, Irvine, Davis). It's a better gauge of school-wide success than admit rate, which only reflects the handful of students who applied.
Why it beats admit rate: if 6 students apply to the top UCs and all get in, that's a 100% admit rate — but at a 1,000-senior school it's a UC Reach Score of just 0.6 (6 ÷ 1,000). By contrast, a school where 250 of 1,000 seniors land a top-UC admit has a UC Reach Score of 25 — far stronger, even though its admit rate is lower.
Why some schools are over 100? Out of every 100 seniors at these schools, the class is generating more than 100 admissions to the six most selective UCs — meaning the typical strong student is getting in at multiple top campuses (UCLA + UCSD, or Berkeley + UCSB + Irvine, for example). It's a rare achievement: fewer than 1% of California high schools clear a UC Reach Score of 100.

Leaderboards by type — San Mateo County (2025)

Top and bottom schools by UC Reach, split public/charter vs private (≥50 seniors). Scoped to San Mateo County — change the County filter above to rescope.

▲ Top 10 Public + Charter

San Mateo County

1
Redwood City · Public
70
2
Millbrae · Public
59
3
Belmont · Public
54
4
San Mateo · Public
54
5
Pacifica · Public
51
6
Burlingame · Public
45
7
San Mateo · Public
33
8
San Mateo · Public
32
9
Woodside · Public
32
10
Atherton · Public
30

▲ Top 10 Private

San Mateo County

1
San Mateo · Private
65
2
Atherton · Private
62

▼ Bottom 10 Public + Charter

San Mateo County

1
Pacifica · Public
10
2
Daly City · Public
14
3
San Bruno · Public
14
4
South San Francisco · Public
14
5
Redwood City · Public
21
6
South San Francisco · Public
23
7
Daly City · Public
25
8
Half Moon Bay · Public
30
9
Atherton · Public
30
10
Woodside · Public
32

▼ Bottom 10 Private

San Mateo County

1
Atherton · Private
62
2
San Mateo · Private
65

🎯 Specialized high schools — San Mateo County · 2025

Top UC Reach for schools with senior classes of 25–99. These are typically magnet programs, specialized charters, and small Catholic preps — too small to compare cleanly against comprehensive public high schools, but the most UC-effective small schools in California are here.

▲ Top 10 Small Public + Charter

San Mateo County

1
Redwood City · Public
12
2
Menlo Park · Public
10
3
East Palo Alto · Public
7
4
East Palo Alto · Public
4

▲ Top 10 Small Private

San Mateo County

1
Portola Valley · Private
70
2
Hillsborough · Private
64
3
East Palo Alto · Private
26
4
Burlingame · Private
25

Top 10 by individual UC campus — San Mateo County · 2025

Where each UC campus lands its admits, as a share of each high school's senior class. Same 50-senior floor.

Top 10 — UCB Reach

UC Berkeley

1
San Mateo · Private
17
2
Atherton · Private
12
3
Redwood City · Public
9
4
Belmont · Public
8
5
San Mateo · Public
6
6
Millbrae · Public
6
7
Pacifica · Public
5
8
San Mateo · Public
5
9
Atherton · Public
4
10
Woodside · Public
4

Top 10 — UCLA Reach

UCLA

1
Atherton · Private
7
2
San Mateo · Private
6
3
Redwood City · Public
4
4
Belmont · Public
4
5
Millbrae · Public
4
6
Burlingame · Public
4
7
Pacifica · Public
4
8
San Mateo · Public
3
9
Woodside · Public
3
10
San Mateo · Public
3

Top 10 — UCSD Reach

UC San Diego

1
Redwood City · Public
18
2
Millbrae · Public
12
3
Pacifica · Public
10
4
San Mateo · Private
9
5
Belmont · Public
8
6
San Mateo · Public
7
7
Atherton · Private
6
8
Burlingame · Public
6
9
San Mateo · Public
5
10
Woodside · Public
5

Top 10 — UCSB Reach

UC Santa Barbara

1
Atherton · Private
17
2
Redwood City · Public
15
3
Belmont · Public
14
4
San Mateo · Public
14
5
Burlingame · Public
13
6
Millbrae · Public
12
7
Pacifica · Public
11
8
San Mateo · Private
11
9
Half Moon Bay · Public
10
10
Woodside · Public
10

Top 10 — UCI Reach

UC Irvine

1
Millbrae · Public
10
2
San Mateo · Public
8
3
Belmont · Public
8
4
Atherton · Private
7
5
Redwood City · Public
7
6
Pacifica · Public
7
7
Burlingame · Public
6
8
San Mateo · Public
5
9
San Mateo · Public
5
10
Daly City · Public
4

Top 10 — UCD Reach

UC Davis

1
San Mateo · Private
18
2
Redwood City · Public
16
3
Millbrae · Public
16
4
San Mateo · Public
16
5
Pacifica · Public
14
6
Burlingame · Public
13
7
Belmont · Public
13
8
Atherton · Private
13
9
Daly City · Public
10
10
San Mateo · Public
9

Beyond UC Reach — more lenses on San Mateo County

UC Reach measures who gets in. These lenses measure the upstream pipeline (A-G), the downstream outcome (UC graduation), the capacity that drives the pipeline (counselors), reliability over time (consistency), grade-11 academic preparation (CAASPP SBAC ELA & Math), and private-school financial strength. Click any school for its full profile.

Top 10 — A-G Completion

% of graduates meeting UC/CSU course requirements · 2024-25 cohort

1
· Public
100.0%
2
East Palo Alto · Public
100.0%
3
Redwood City · Public
98.0%
4
Redwood City · Public
97.7%
5
Burlingame · Public
85.4%
6
East Palo Alto · Public
85.0%
7
San Mateo · Public
80.8%
8
Pacifica · Public
80.0%
9
Belmont · Public
77.7%
10
San Mateo · Public
74.9%

Top 10 — UC 6-Yr Grad Rate

% of UC entrants who finished in 6 years · cohort N ≥ 20

1
Atherton · Public
100.0%
2
Burlingame · Private
100.0%
3
San Mateo · Public
97.2%
4
Belmont · Public
96.5%
5
South San Francisco · Public
96.2%
6
Burlingame · Public
96.1%
7
Pacifica · Public
95.7%
8
San Mateo · Public
92.3%
9
South San Francisco · Public
92.3%
10
San Mateo · Public
90.9%

Top 10 — Best Counselor Capacity

Lowest students-per-counselor (ASCA target 250:1) · public/charter, ≥500 students

1
Daly City · Public
123:1
2
Pacifica · Public
131:1
3
Daly City · Public
198:1
4
Atherton · Public
215:1
5
Redwood City · Public
230:1
6
South San Francisco · Public
263:1
7
Belmont · Public
265:1
8
· Public
267:1
9
Woodside · Public
282:1
10
South San Francisco · Public
306:1

Top 10 — Most Consistent

Lowest UC Reach std-dev across 5 years (above-CA-median mean)

1
avg 35.0 · σ 2.81
σ 2.81
2
avg 31.7 · σ 4.59
σ 4.59
3
avg 49.3 · σ 4.85
σ 4.85
4
avg 46.0 · σ 4.95
σ 4.95
5
avg 55.5 · σ 6.65
σ 6.65
6
avg 43.6 · σ 7.1
σ 7.1
7
avg 46.8 · σ 9.39
σ 9.39
8
avg 62.7 · σ 10.37
σ 10.37
9
avg 66.0 · σ 11.26
σ 11.26
10
avg 71.0 · σ 11.68
σ 11.68

Top 10 — SBAC ELA met/exceeded

% Met or Exceeded Standard · Grade 11 CAASPP · public/charter · tested ≥30

1
Redwood City · n=121 · 2025
90%
2
Belmont · n=548 · 2025
85%
3
Burlingame · n=327 · 2025
83%
4
Millbrae · n=270 · 2025
82%
5
San Mateo · n=399 · 2025
82%
6
South San Francisco · n=265 · 2025
74%
7
San Mateo · n=355 · 2025
72%
8
Atherton · n=453 · 2025
69%
9
Pacifica · n=102 · 2025
67%
10
Daly City · n=329 · 2025
65%

Top 10 — SBAC Math met/exceeded

% Met or Exceeded Standard · Grade 11 CAASPP · public/charter · tested ≥30

1
Belmont · n=529 · 2025
72%
2
Burlingame · n=316 · 2025
66%
3
Millbrae · n=270 · 2025
63%
4
Redwood City · n=120 · 2025
63%
5
San Mateo · n=399 · 2025
59%
6
Atherton · n=461 · 2025
51%
7
Pacifica · n=102 · 2025
50%
8
San Mateo · n=289 · 2025
44%
9
San Mateo · n=358 · 2025
42%
10
Pacifica · n=148 · 2025
41%

Top 10 — Private Net Assets

Wealthiest CA private high schools · IRS Form 990 · latest fiscal year

1
Atherton · Nonsectarian · FY 2023
$243.0M
2
Pacifica · Other religious · FY 2023
$226,977
3
Menlo Park · Nonsectarian · FY 2023
$55,140

Reach momentum — biggest gains & declines over time

≥50 seniors · earliest→latest year

Which schools are moving a growing — or shrinking — share of their graduating class into the six most selective UCs. Reflects the current county/type filter.

▲ Biggest gains

SchoolThen → NowΔ
Redwood City · Public
32 '18 → 70 '25 +37.5pp
Pacifica · Public
26 '18 → 51 '25 +25.2pp
Half Moon Bay · Public
15 '18 → 30 '25 +14.9pp
Daly City · Public
16 '18 → 25 '25 +9.4pp
Woodside · Public
23 '18 → 32 '25 +8.6pp
San Mateo · Public
46 '18 → 54 '25 +7.1pp
South San Francisco · Public
16 '18 → 22 '25 +6.8pp
San Mateo · Private
60 '22 → 65 '25 +5.2pp
Burlingame · Public
40 '18 → 45 '25 +4.2pp
South San Francisco · Public
12 '18 → 14 '25 +2.2pp

▼ Biggest declines

SchoolThen → NowΔ
Atherton · Private
70 '20 → 62 '25 -7.1pp
San Bruno · Public
21 '18 → 14 '25 -6.4pp
Burlingame · Private
25 '20 → 20 '24 -4.6pp
Atherton · Public
34 '18 → 30 '25 -3.6pp
Belmont · Public
57 '18 → 54 '25 -2.7pp
Redwood City · Public
23 '18 → 21 '25 -2.1pp
Pacifica · Public
12 '18 → 10 '25 -1.9pp
Millbrae · Public
61 '18 → 59 '25 -1.7pp
Daly City · Public
14 '18 → 14 '25 -0.7pp
San Mateo · Public
32 '18 → 32 '25 0.1pp

Demand momentum — biggest gaps vs the county baseline

grade-12 enrollment Δ vs. county · ≥80 students

The demographic tide is shrinking CA enrollment ~10% over 7 years statewide, so absolute decline alone is noise. The gap vs the county baseline is the actionable signal — schools losing share faster than their demographic floor are the ones to watch. Reflects the current county/type filter.

▲ Outperforming the county the most

SchoolSchool · CountyGap
Burlingame · San Mateo · Public  Best in class
+18.0% vs -5.3% +23.3pp
San Mateo · San Mateo · Public  Best in class
+13.6% vs -5.3% +18.9pp
San Mateo · San Mateo · Public  Strong demand
+11.6% vs -5.3% +16.9pp
Daly City · San Mateo · Public  Demand hides churn
+8.9% vs -5.3% +14.2pp
Belmont · San Mateo · Public  Best in class
+4.5% vs -5.3% +9.8pp
Redwood City · San Mateo · Public  Best in class
+1.6% vs -5.3% +6.9pp
San Bruno · San Mateo · Public  Strong demand
-0.7% vs -5.3% +4.7pp
Atherton · San Mateo · Public  Strong demand
-0.7% vs -5.3% +4.6pp
Woodside · San Mateo · Public  Strong demand
-1.5% vs -5.3% +3.8pp
Redwood City · San Mateo · Public  Tracking
-5.0% vs -5.3% +0.3pp

▼ Underperforming the county the most

SchoolSchool · CountyGap
Pacifica · San Mateo · Public  Material decline
-36.1% vs -5.3% -30.8pp
Pacifica · San Mateo · Public  Sharp downturn
-26.1% vs -5.3% -20.8pp
South San Francisco · San Mateo · Public  Compounding decline
-25.7% vs -5.3% -20.4pp
Daly City · San Mateo · Public  Compounding decline
-21.4% vs -5.3% -16.0pp
San Mateo · San Mateo · Public  Compounding decline
-16.9% vs -5.3% -11.5pp
Millbrae · San Mateo · Public  Sharp downturn
-15.8% vs -5.3% -10.4pp
South San Francisco · San Mateo · Public  Demand problem
-12.8% vs -5.3% -7.5pp
East Palo Alto · San Mateo · Public  Demand problem
-9.3% vs -5.3% -4.0pp
Half Moon Bay · San Mateo · Public  Tracking
-5.6% vs -5.3% -0.2pp
Redwood City · San Mateo · Public  Tracking
-5.0% vs -5.3% +0.3pp

GPA Performance — over/under their predicted UC admit rate

18 schools eligible · 2025

Each dot is one school. The diagonal is the per-campus GPA expectation — points above it admit students at higher rates than their GPA mix predicts; points below admit at lower rates. Schools need ≥30 top-6 UC applications and data across ≥3 campuses to appear.

▲ Top 10 outperformers

School GPA Actual Δ vs exp.
Half Moon Bay · Public
4.09 26.4% +2.2pp
Pacifica · Public
4.06 24.3% +1.2pp
San Bruno · Public
4.06 22.3% +0.9pp
South San Francisco · Public
3.71 21.8% +0.4pp
Daly City · Public
3.92 21.1% +-0.3pp
Daly City · Public
3.91 19.8% +-0.5pp
Redwood City · Public
4.07 22.6% +-0.8pp
Millbrae · Public
3.99 20.9% +-1.2pp
Woodside · Public
4.02 21.0% +-1.7pp
San Mateo · Public
3.99 19.8% +-2.2pp

▼ Top 10 underperformers

School GPA Actual Δ vs exp.
Pacifica · Public
3.90 19.6% -8.7pp
San Mateo · Public
3.96 16.7% -4.9pp
Atherton · Public
3.98 16.8% -4.9pp
Belmont · Public
4.00 17.8% -4.5pp
Redwood City · Public
3.98 18.0% -4.4pp
South San Francisco · Public
3.98 17.8% -4.0pp
San Mateo · Public
4.02 19.7% -3.1pp
Burlingame · Public
3.96 18.6% -3.1pp
San Mateo · Public
3.99 19.8% -2.2pp
Woodside · Public
4.02 21.0% -1.7pp

Full rankings — every San Mateo County high school by UC Reach Score

Sortable by any column. Click a column header to sort. Click any school row to open its profile.

20 schools · 2025 data · 16 hidden (under 100 seniors)
Show all schools (no floor) Compare selected schools →
# School County Seniors Total Enroll UC Reach Score App Reach Score Admit Rate Yield Selective Reach Elite Reach Raw Apps Raw Admits
1
Redwood City · Public  Best in class
San Mateo 138 567 70 308 22.6% 18.8% 53.6 13.0 425 96
2
San Mateo · Private
San Mateo 108 952 65 375 17.3% 4.3% 47.2 23.1 405 70
3
Atherton · Private
San Mateo 149 805 62 348 17.9% 10.8% 49.7 19.5 519 93
4
Millbrae · Public  Sharp downturn
San Mateo 275 1,115 59 283 20.9% 28.2% 43.6 10.2 779 163
5
Belmont · Public  Best in class
San Mateo 595 2,360 54 304 17.8% 29.2% 41.3 11.6 1,811 322
6
San Mateo · Public  Best in class
San Mateo 438 1,658 54 271 19.8% 30.6% 38.1 9.1 1,189 235
7
Pacifica · Public  Sharp downturn
San Mateo 142 471 51 208 24.3% 37.5% 36.6 8.4 296 72
8
Burlingame · Public  Best in class
San Mateo 412 1,583 45 240 18.6% 17.4% 31.6 6.8 988 184
9
San Mateo · Public  Compounding decline
San Mateo 394 1,557 33 197 16.7% 23.1% 24.6 7.4 777 130
10
San Mateo · Public  Strong demand
San Mateo 411 1,585 32 163 19.7% 23.5% 22.9 5.8 670 132
11
Woodside · Public  Strong demand
San Mateo 435 1,660 32 151 21.0% 27.5% 24.8 6.4 656 138
12
Atherton · Public  Strong demand
San Mateo 571 2,158 30 180 16.8% 25.6% 21.5 6.7 1,025 172
13
Half Moon Bay · Public  Tracking
San Mateo 233 911 30 112 26.4% 18.8% 21.5 5.2 261 69
14
Daly City · Public  Compounding decline
San Mateo 322 1,278 25 119 21.1% 39.5% 15.5 3.7 384 81
15
South San Francisco · Public  Demand problem
San Mateo 271 1,053 23 126 17.8% 29.5% 14.0 3.3 342 61
16
Redwood City · Public  Tracking
San Mateo 475 1,854 21 118 18.0% 16.8% 14.9 5.0 560 101
17
South San Francisco · Public  Compounding decline
San Mateo 304 1,239 14 66 21.8% 22.7% 9.9 2.0 202 44
18
San Bruno · Public  Strong demand
San Mateo 281 1,061 14 76 18.7% 20.0% 9.2 3.2 214 40
19
Daly City · Public  Demand hides churn
San Mateo 260 1,072 14 82 16.8% 27.8% 9.6 2.3 214 36
20
Pacifica · Public  Material decline
San Mateo 178 740 10 91 11.1% 22.2% 5.6 162 18
UC Reach = top-6 UC admits ÷ senior class size. Where UCOP has not published unique-student totals, campus admits are summed — students admitted to more than one of the 6 campuses are counted at each, so values above 100 indicate strong students winning multiple competitive UC offers. Schools with fewer than 100 seniors are excluded from the leaderboard by default — a small cohort with one strong year can otherwise dominate. See methodology →