Three Rivers Charter

· Mendocino County · Fort Bragg Unified
Public Mendocino County 🏛 Fort Bragg Unified → CDS 2365565…
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Compare with peers

Most similar nearby schools

Mendocino High School → Noyo High (continuation) → Laytonville High School → La Vida Charter → Willits Charter → Compare all similar →

No UC admissions data on file for Three Rivers Charter.

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)
114 (2018)78 (2026)
-31.6%
Grade 12 (graduating class)
2 (2018)3 (2019)
+50.0%

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) ~74 -4 $0
3 yr (2029) ~68 -10 $0
5 yr (2031) ~62 -16 $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 Mendocino County baseline — the demographic tide is moving every CA HS, so a school's gap vs. county is the actionable signal.

Mixed signal
Demand outpacing county is masking internal churn.

Enrollment growth is beating Mendocino County (+50.0% vs. -2.8%), but 14 of 84 students didn't maintain continuous enrollment. Why are families leaving once enrolled? Chronic absenteeism is also at 34.5% (up -0.3 pts from 2016-17) — engagement and demand are both signaling decline.

+50.0%  school enrollment (2018–2019)
-2.8%  Mendocino County baseline
+52.8pp  gap vs. county
83.3%  retention (county median 85.5%)
Enrollment — indexed to 100 at 2018
Stability rate
83.3%
70 of 84 students

14 of 84 students who enrolled at Three Rivers Charter this year didn't maintain continuous enrollment (16.7% non-stability). Mid-year transfers, dropouts, and other exits are all counted.

Mendocino County median
85.5% · school is in the 41st percentile of 17 HS
Statewide median
88.7% · in the 29th percentile of 2,648 HS

Stability by student group

White (55) 83.6%
Socio. disadvantaged (54) 79.6%

Nearest peer high schools

Mendocino High School 93.5% Noyo High (continuation) 48.6% Laytonville High School 91.3% La Vida Charter 58.1% Willits Charter 76.8%

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: total enrollment.

Chronic absent
34.5%
29 of 84 students

Absenteeism is up 21.9 pp since 2016-17. A rising absenteeism trend often precedes formal departure — worth investigating which subgroups are driving it.

Mendocino County median
29.5% · school is worse than 59% of 17 HS
Statewide median
20.9%
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).

District financial profile — Fort Bragg Unified (FY2020)

From 4 years of NCES F-33 filings (the federally-mandated district finance survey). Public schools don't have their own books — the district does. These figures show the financial scale, revenue dependence, instruction-vs-overhead mix, and long-term debt that shape what a school can sustain.

Total revenue
$32.8M
+25.4% since FY2017
Per-pupil revenue
$19,351
1,695 students enrolled
Revenue mix
State: 48.5%
Local: 35.5%
Federal: 16.0%
Instruction share
50.9%
of current spending · $7,434/pupil
Long-term debt
$39.8M
+25.5% since FY2017
Total revenue by year ($M)
Total expenditure by year ($M)

Source: NCES F-33 Annual Survey of School System Finances (Urban Institute Education Data API). Latest year currently published: FY2020. F-33 is a district-level federal filing — it reflects the Fort Bragg Unified as a whole, not this individual school's books. Revenue mix shows where the district's dollars come from (state aid dominates in CA via LCFF). Instruction share is current expenditure on instruction ÷ total current expenditure (national benchmark ~60%). Long-term debt is end-of-year outstanding (mostly facilities bonds).

Three Rivers Charter — Enrollment & Outcomes Snapshot

Public · vs. 10 most similar nearby schools

  • Senior-class enrollment is up 50% (2→3 from 2018 to 2019), outpacing the peer-group median of -1%.
  • At its recent rate (-4.6%/yr), enrollment projects to ~68 by 2029 — about 10 fewer students than today.

Enrollment projection

78 students (2026)
~68 projected (2029)
at -4.6%/yr

That's about 10 fewer students. At per-student funding of $ per student, that's roughly $0 in annual state funding at risk.

Default = California's LCFF base grant for grades 9–12 ($12,423 per ADA) — adjust to your district's actual per-pupil figure. Projection extrapolates the recent annual rate — not a forecast of intent.

Your school vs. its 10 most similar nearby schools

School Type Size UC Reach Enroll. trend
Three Rivers Charter Public 78 +50%
Peer-group median 37.8% -1%
Mendocino High School Public 159 63.0% -25%
Noyo High (continuation) Public 23 +300%
Laytonville High School Public 96 -7%
La Vida Charter Public 60 -17%
Willits Charter Public 131 -29%
Agnes J. Johnson Charter Public 79 +0%
East High (continuation) Public 74 -2%
Northwest Prep Charter School Public 83 +7%
Potter Valley High School Public 70 +43%
Hayfork High School Public 90 12.5% +38%

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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