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🏆 Top 10 in Sonoma County — UC Reach Score

Sonoma 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 — Sonoma County (2025)

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

▲ Top 10 Public + Charter

Sonoma County

1
Healdsburg · Public
40
2
Santa Rosa · Public
28
3
Sonoma · Public
24
4
Petaluma · Public
22
5
Windsor · Public
18
6
Petaluma · Public
16
7
· Public
12
8
Sebastopol · Public
12
9
Santa Rosa · Public
8
10
Santa Rosa · Public
8

▲ Top 10 Private

Sonoma County

1
Santa Rosa · Private
23

▼ Bottom 10 Public + Charter

Sonoma County

1
Santa Rosa · Public
5
2
Rohnert Park · Public
8
3
Santa Rosa · Public
8
4
Santa Rosa · Public
8
5
Sebastopol · Public
12
6
· Public
12
7
Petaluma · Public
16
8
Windsor · Public
18
9
Petaluma · Public
22
10
Sonoma · Public
24

▼ Bottom 10 Private

Sonoma County

1
Santa Rosa · Private
23

🎯 Specialized high schools — Sonoma 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

Sonoma County

1
Rohnert Park · Public
32
2
Cloverdale · Public
7

▲ Top 10 Small Private

Sonoma County

1
Santa Rosa · Private
49
2
Petaluma · Private
10

Top 10 by individual UC campus — Sonoma 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
Healdsburg · Public
5
2
Sonoma · Public
3
3
Windsor · Public
2
4
Santa Rosa · Public
2
5
· Public
2
6
Petaluma · Public
1
7
Petaluma · Public
1

Top 10 — UCLA Reach

UCLA

1
Healdsburg · Public
4
2
Santa Rosa · Private
3
3
Sonoma · Public
3
4
Santa Rosa · Public
2
5
Petaluma · Public
1
6
Petaluma · Public
1
7
Windsor · Public
1
8
Sebastopol · Public
1
9
· Public
1

Top 10 — UCSD Reach

UC San Diego

1
Healdsburg · Public
8
2
Santa Rosa · Private
7
3
Santa Rosa · Public
5
4
Sonoma · Public
5
5
Windsor · Public
4
6
Petaluma · Public
4
7
Petaluma · Public
3
8
· Public
2
9
Rohnert Park · Public
2
10
Santa Rosa · Public
2

Top 10 — UCSB Reach

UC Santa Barbara

1
Santa Rosa · Private
7
2
Santa Rosa · Public
6
3
Healdsburg · Public
5
4
Sonoma · Public
5
5
Windsor · Public
4
6
Petaluma · Public
4
7
Petaluma · Public
4
8
Sebastopol · Public
4
9
· Public
4
10
Santa Rosa · Public
3

Top 10 — UCI Reach

UC Irvine

1
Petaluma · Public
7
2
Santa Rosa · Public
6
3
Healdsburg · Public
2
4
Windsor · Public
2
5
Petaluma · Public
2
6
Sebastopol · Public
1

Top 10 — UCD Reach

UC Davis

1
Healdsburg · Public
16
2
Sonoma · Public
9
3
Santa Rosa · Public
8
4
Windsor · Public
6
5
Petaluma · Public
6
6
Santa Rosa · Private
6
7
Petaluma · Public
5
8
Sebastopol · Public
5
9
Santa Rosa · Public
4
10
· Public
4

Beyond UC Reach — more lenses on Sonoma 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
Rohnert Park · Public
97.3%
2
Rohnert Park · Public
82.1%
3
Healdsburg · Public
67.7%
4
Santa Rosa · Public
59.1%
5
Sebastopol · Public
56.9%
6
Sonoma · Public
55.3%
7
Petaluma · Public
54.9%
8
Petaluma · Public
51.5%
9
· Public
48.6%
10
Santa Rosa · Public
42.8%

Top 10 — UC 6-Yr Grad Rate

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

1
Santa Rosa · Public
100.0%
2
Sebastopol · Public
100.0%
3
Petaluma · Public
96.0%
4
Santa Rosa · Public
92.9%
5
Rohnert Park · Public
92.0%
6
Sonoma · Public
91.3%
7
Petaluma · Public
90.9%
8
Windsor · Public
88.0%
9
Santa Rosa · Private
81.0%

Top 10 — Best Counselor Capacity

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

1
Santa Rosa · Public
180:1
2
Sonoma · Public
180:1
3
Santa Rosa · Public
186:1
4
· Public
203:1
5
Santa Rosa · Public
256:1
6
Santa Rosa · Public
283:1
7
Petaluma · Public
293:1
8
Petaluma · Public
320:1
9
Rohnert Park · Public
336:1
10
Healdsburg · Public
340:1

Top 10 — Most Consistent

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

1
avg 17.9 · σ 3.74
σ 3.74
2
avg 22.9 · σ 4.61
σ 4.61
3
avg 17.0 · σ 5.09
σ 5.09
4
avg 29.2 · σ 6.57
σ 6.57
5
avg 53.5 · σ 6.74
σ 6.74
6
avg 20.2 · σ 7.05
σ 7.05
7
avg 23.2 · σ 8.17
σ 8.17
8
avg 26.0 · σ 8.56
σ 8.56

Top 10 — SBAC ELA met/exceeded

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

1
Rohnert Park · n=88 · 2025
92%
2
Rohnert Park · n=123 · 2025
77%
3
Healdsburg · n=105 · 2025
69%
4
Sebastopol · n=317 · 2025
68%
5
Petaluma · n=397 · 2025
67%
6
Santa Rosa · n=387 · 2025
65%
7
Windsor · n=400 · 2025
60%
8
Petaluma · n=269 · 2025
53%
9
Sonoma · n=247 · 2025
53%
10
Rohnert Park · n=364 · 2025
52%

Top 10 — SBAC Math met/exceeded

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

1
Rohnert Park · n=85 · 2025
69%
2
Rohnert Park · n=123 · 2025
50%
3
Santa Rosa · n=390 · 2025
47%
4
Sebastopol · n=323 · 2025
41%
5
Petaluma · n=274 · 2025
37%
6
Healdsburg · n=104 · 2025
37%
7
Petaluma · n=400 · 2025
36%
8
Windsor · n=400 · 2025
29%
9
· n=183 · 2025
28%
10
Santa Rosa · n=311 · 2025
19%

Top 10 — Private Net Assets

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

1
Santa Rosa · FY 2023
$114.8M
2
Santa Rosa · FY 2023
$9.3M

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
Healdsburg · Public
11 '18 → 40 '25 +29.3pp
Windsor · Public
8 '18 → 18 '25 +10.4pp
Sonoma · Public
14 '18 → 24 '25 +9.7pp
Santa Rosa · Public
20 '18 → 28 '25 +9.0pp
· Public
5 '18 → 12 '25 +7.4pp
Petaluma · Public
12 '18 → 16 '25 +4.8pp
Santa Rosa · Public
2 '18 → 5 '25 +3.8pp
Petaluma · Public
19 '18 → 22 '25 +2.7pp
Santa Rosa · Public
7 '18 → 8 '25 +1.0pp
Sebastopol · Public
14 '18 → 12 '25 +-2.6pp

▼ Biggest declines

SchoolThen → NowΔ
Santa Rosa · Private
40 '20 → 23 '25 -16.3pp
Santa Rosa · Public
14 '18 → 8 '25 -5.4pp
Rohnert Park · Public
13 '18 → 8 '25 -5.2pp
Sebastopol · Public
14 '18 → 12 '25 -2.6pp
Santa Rosa · Public
7 '18 → 8 '25 1.0pp
Petaluma · Public
19 '18 → 22 '25 2.7pp
Santa Rosa · Public
2 '18 → 5 '25 3.8pp
Petaluma · Public
12 '18 → 16 '25 4.8pp
· Public
5 '18 → 12 '25 7.4pp
Santa Rosa · Public
20 '18 → 28 '25 9.0pp

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
Sebastopol · Sonoma · Public  Best in class
+25.6% vs -0.1% +25.7pp
Santa Rosa · Sonoma · Public  Demand hides churn
+14.2% vs -0.1% +14.3pp
Petaluma · Sonoma · Public  Strong demand
+13.6% vs -0.1% +13.6pp
Rohnert Park · Sonoma · Public  Strong demand
+13.3% vs -0.1% +13.3pp
Santa Rosa · Sonoma · Public  Best in class
+6.4% vs -0.1% +6.5pp
Windsor · Sonoma · Public  Strong demand
+4.2% vs -0.1% +4.3pp
Petaluma · Sonoma · Public  Material decline
-13.6% vs -0.1% -13.6pp
Santa Rosa · Sonoma · Public  Compounding decline
-15.3% vs -0.1% -15.2pp
Healdsburg · Sonoma · Public  Material decline
-19.9% vs -0.1% -19.8pp
· Sonoma · Public  Compounding decline
-20.2% vs -0.1% -20.1pp

▼ Underperforming the county the most

SchoolSchool · CountyGap
Santa Rosa · Sonoma · Public  Compounding decline
-22.1% vs -0.1% -22.0pp
Sonoma · Sonoma · Public  Material decline
-21.5% vs -0.1% -21.4pp
Cloverdale · Sonoma · Public  Material decline
-21.1% vs -0.1% -21.0pp
· Sonoma · Public  Compounding decline
-20.2% vs -0.1% -20.1pp
Healdsburg · Sonoma · Public  Material decline
-19.9% vs -0.1% -19.8pp
Santa Rosa · Sonoma · Public  Compounding decline
-15.3% vs -0.1% -15.2pp
Petaluma · Sonoma · Public  Material decline
-13.6% vs -0.1% -13.6pp
Windsor · Sonoma · Public  Strong demand
+4.2% vs -0.1% +4.3pp
Santa Rosa · Sonoma · Public  Best in class
+6.4% vs -0.1% +6.5pp
Rohnert Park · Sonoma · Public  Strong demand
+13.3% vs -0.1% +13.3pp

GPA Performance — over/under their predicted UC admit rate

11 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.
Santa Rosa · Public
3.78 46.4% +17.2pp
Rohnert Park · Public
3.85 44.0% +16.4pp
Sonoma · Public
3.89 36.7% +13.2pp
Santa Rosa · Public
3.92 28.7% +7.4pp
Healdsburg · Public
3.94 27.0% +5.5pp
Windsor · Public
3.92 26.7% +4.6pp
· Public
3.86 24.2% +3.5pp
Petaluma · Public
3.99 25.1% +2.8pp
Santa Rosa · Public
3.80 28.0% +-0.0pp
Sebastopol · Public
3.93 23.6% +-0.3pp

▼ Top 10 underperformers

School GPA Actual Δ vs exp.
Petaluma · Public
4.00 21.1% -2.1pp
Sebastopol · Public
3.93 23.6% -0.3pp
Santa Rosa · Public
3.80 28.0% -0.0pp
Petaluma · Public
3.99 25.1% 2.8pp
· Public
3.86 24.2% 3.5pp
Windsor · Public
3.92 26.7% 4.6pp
Healdsburg · Public
3.94 27.0% 5.5pp
Santa Rosa · Public
3.92 28.7% 7.4pp
Sonoma · Public
3.89 36.7% 13.2pp
Rohnert Park · Public
3.85 44.0% 16.4pp

Full rankings — every Sonoma 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.

13 schools · 2025 data · 7 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
Healdsburg · Public  Material decline
Sonoma 134 503 40 149 27.0% 18.5% 24.6 9.0 200 54
2
Santa Rosa · Public  Best in class
Sonoma 372 1,584 28 99 28.7% 15.1% 21.0 3.8 369 106
3
Sonoma · Public  Material decline
Sonoma 256 1,071 24 73 33.0% 14.5% 15.6 5.9 188 62
4
Santa Rosa · Private
Sonoma 108 567 23 150 15.4% 17.6 2.8 162 25
5
Petaluma · Public  Material decline
Sonoma 296 1,193 22 102 21.1% 23.4% 16.6 2.4 303 64
6
Windsor · Public  Strong demand
Sonoma 426 1,700 18 69 26.7% 28.2% 12.2 2.6 292 78
7
Petaluma · Public  Strong demand
Sonoma 401 1,653 16 66 25.1% 27.3% 10.5 2.0 263 66
8
· Public  Compounding decline
Sonoma 318 1,253 12 57 21.4% 20.5% 8.5 2.5 182 39
9
Sebastopol · Public  Best in class
Sonoma 347 1,473 12 60 19.8% 19.5% 6.9 0.9 207 41
10
Santa Rosa · Public  Compounding decline
Sonoma 346 1,553 8 50 16.1% 32.1% 4.0 174 28
11
Santa Rosa · Public  Demand hides churn
Sonoma 334 1,434 8 32 24.5% 30.8% 4.5 106 26
12
Rohnert Park · Public  Strong demand
Sonoma 425 1,755 8 36 21.6% 21.2% 4.7 153 33
13
Santa Rosa · Public  Compounding decline
Sonoma 230 1,029 5 22 23.5% 2.2 51 12
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 →