Sonoma Mountain High (continuation)

· Sonoma County · Petaluma Joint Union High
Public Sonoma County 🏛 Petaluma Joint Union High → CDS 4970862…
📄 Shareable scorecard →

Compare with peers

Most similar nearby schools

Valley Oaks High (alternative) → Carpe Diem High (continuation) → San Antonio High (continuation) → San Andreas High (continuation) → Creekside High → Compare all similar →

No UC admissions data on file for Sonoma Mountain High (continuation).

This school doesn't appear in UCOP's source-school records (it may send few or no applicants to UC). Its enrollment trend and similar-school comparison are still below.

Enrollment trend & projection

Total enrollment (9–12)
21 (2018)30 (2026)
+42.9%
Grade 12 (graduating class)
8 (2018)5 (2026)
-37.5%

If this trend holds (+4.6%/yr, Total enrollment)

At per-pupil funding of $ / student:

Horizon Projected Total enrollment Change Funding impact / yr
1 yr (2027) ~31 +1 $0
3 yr (2029) ~34 +4 $0
5 yr (2031) ~37 +7 $0

Straight-line extrapolation of the recent annual rate — a what-if, not a forecast of intent. Default = California's LCFF base grant for grades 9–12 ($12,423/ADA). Edit the figure to match your school.

Enrollment stability & demand — 2024-25

Two complementary signals: retention (do students stay once enrolled?) and demand (are families choosing the school?). Read against the Sonoma County baseline — the demographic tide is moving every CA HS, so a school's gap vs. county is the actionable signal.

Critical
Compounding decline on both vectors.

Enrollment -37.5% vs. county -0.1% AND stability (31.6%) below the county median. Recruitment and retention both under pressure — likely a foundational rather than tactical problem. Chronic absenteeism is also at 71.0% (up -29.0 pts from 2016-17) — engagement and demand are both signaling decline.

-37.5%  school enrollment (2018–2026)
-0.1%  Sonoma County baseline
-37.4pp  gap vs. county
31.6%  retention (county median 91.9%)
Enrollment — indexed to 100 at 2018
Stability rate by year (raw %)
Stability rate
31.6%
12 of 38 students

26 of 38 students who enrolled at Sonoma Mountain High (continuation) this year didn't maintain continuous enrollment (68.4% non-stability). Mid-year transfers, dropouts, and other exits are all counted.

Sonoma County median
91.9% · school is in the 0th percentile of 19 HS
Statewide median
87.2% · in the 7th percentile of 1,688 HS

Stability by student group

Socio. disadvantaged (30) 20.0%
White (24) 41.7%

Nearest peer high schools

Valley Oaks High (alternative) 34.9% Carpe Diem High (continuation) 37.9% San Antonio High (continuation) 37.0% San Andreas High (continuation) 40.0% Creekside High 54.4%

Source: California Department of Education, Stability Rate 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 cumulative enrollees so by-design-high-churn continuation schools don't dominate the bottom of the distribution. Cumulative enrollment counts every student on the rolls during the year, so it can exceed peak-day enrollment.

Chronic absenteeism — 2024-25

Share of students missing 10% or more of expected attendance — the leading indicator that often precedes the demand decline shown above. Families disengaging tend to raise absenteeism first, then formally leave. Basis: grades 9–12.

Chronic absent
71.0%
22 of 31 students

Absenteeism is down 29.0 pp since 2016-17. Engagement improving — a positive trajectory worth understanding and reinforcing.

Sonoma County median
24.4% · school is worse than 100% of 18 HS
Statewide median
22.9%
Chronic absenteeism by year (raw %)

Source: California Department of Education, Chronic Absenteeism 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 eligible students. CDE didn't publish a usable 2019-20 file (COVID).

SBAC academic outcomes — grade 11, 2022

Share of grade-11 students meeting or exceeding the California standard on Smarter Balanced ELA and Math. This is the academic-readiness signal that pairs with UC Reach (post-grad outcomes), stability (retention), and absenteeism (engagement). Note: statewide median Math is only ~20% — a school at 20% isn't an outlier; one at 45%+ genuinely is.

ELA — met or exceeded
n = —
53.9%
incl. 7.7% exceeded
Math — met or exceeded
n = —
7.7%
incl. 0.0% exceeded

Source: California Assessment of Student Performance and Progress (CAASPP) Smarter Balanced research files. Benchmarks limited to non-virtual public & charter HS with ≥30 tested students.

Student composition — 2025-26

HS grades 9–12 racial/ethnic composition and program subgroups, from CDE Census Day Enrollment. Two-year shift shown when ≥1 pt — surfaces how the community served has changed since 2023-24.

Race / ethnicity

White 57% -1.6
Hispanic / Latino 40% +15.0
Two or more 3% -9.2

Program subgroups

Source: California Department of Education, Census Day Enrollment 2025-26 (HS grades 9–12). Δ shown when shift is ≥1 pt since 2023-24. Categories below 0.5% omitted.

Sonoma Mountain High (continuation) — Enrollment & Outcomes Snapshot

Public · vs. 10 most similar nearby schools

  • Senior-class enrollment is down 38% (8→5 from 2018 to 2026), trailing the peer-group median of -30%.
  • Enrollment has been growing (+4.6%/yr); projects to ~34 by 2029.

Enrollment projection

30 students (2026)
~34 projected (2029)
at +4.6%/yr

Your school vs. its 10 most similar nearby schools

School Type Size UC Reach Enroll. trend
Sonoma Mountain High (continuation) Public 30 -38%
Peer-group median -30%
Valley Oaks High (alternative) Public 30 -61%
Carpe Diem High (continuation) Public 19 -50%
San Antonio High (continuation) Public 60 -29%
San Andreas High (continuation) Public 31 -65%
Creekside High Public 61 +629%
El Camino High Public 65 +26%
Marin Oaks High Public 63 +27%
North Bay Met Academy Public 28 -76%
Windsor Oaks Academy Public 38 -24%
Madrone High Continuation Public 50 -32%

UC Reach = top-6 UC admits ÷ senior class (can exceed 100% when students are admitted to multiple campuses). Enrollment trend = first-to-latest grade-12 change on file. Similar schools matched on proximity, size, type. Methodology →

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