Alder Grove Charter School 2

· Humboldt County · South Bay Union Elementary
Public Humboldt County 🏛 South Bay Union Elementary → CDS 1263032…
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Compare with peers

Most similar nearby schools

Northern United - Humboldt Charter → Mckinleyville High School → Eureka Senior High School → Eureka Senior High → Arcata High School → Compare all similar →

No UC admissions data on file for Alder Grove Charter School 2.

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)
443 (2018)503 (2026)
+13.5%
Grade 12 (graduating class)
52 (2018)32 (2026)
-38.5%

If this trend holds (+1.6%/yr, Total enrollment)

At per-pupil funding of $ / student:

Horizon Projected Total enrollment Change Funding impact / yr
1 yr (2027) ~511 +8 $0
3 yr (2029) ~528 +25 $0
5 yr (2031) ~545 +42 $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 Humboldt 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 -38.5% vs. county +41.0% AND stability (84.6%) below the county median. Recruitment and retention both under pressure — likely a foundational rather than tactical problem.

-38.5%  school enrollment (2018–2026)
+41.0%  Humboldt County baseline
-79.5pp  gap vs. county
84.6%  retention (county median 88.7%)
Enrollment — indexed to 100 at 2018
Stability rate by year (raw %)
Stability rate
84.6%
137 of 162 students

25 of 162 students who enrolled at Alder Grove Charter School 2 this year didn't maintain continuous enrollment (15.4% non-stability). Mid-year transfers, dropouts, and other exits are all counted.

Humboldt County median
88.7% · school is in the 33rd percentile of 12 HS
Statewide median
87.2% · in the 40th percentile of 1,688 HS

Stability by student group

Socio. disadvantaged (376) 79.0%
White (347) 83.0%
Students w/ disabilities (98) 79.6%
Hispanic / Latino (97) 81.4%
Two or more races (87) 66.7%

Nearest peer high schools

Northern United - Humboldt Charter 73.4% Mckinleyville High School 87.1% Eureka Senior High 89.5% Arcata High School 89.3%

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
0.6%
1 of 160 students

Absenteeism is down 3.4 pp since 2016-17. Engagement improving — a positive trajectory worth understanding and reinforcing.

Humboldt County median
26.6% · school is better than 100% of 11 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, 2025

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 = 33
54.5%
incl. 12.1% exceeded
+8.6 pts above Humboldt County median (45.9%) · CA median 54.3% · Top 10% statewide ≥ 79.3%
Math — met or exceeded
n = 33
18.2%
incl. 6.1% exceeded
-2.8 pts vs. Humboldt County median (21.0%) · CA median 21.1% · Top 10% statewide ≥ 53.6%

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 62% -1.4
Hispanic / Latino 21% +4.4
Two or more 12% -2.1
American Indian 4% -1.4
Black / African Am. 1%

Program subgroups

Students w/ disabilities 63% -5.0
Socioeconomically disadv. 18% +10.4

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.

Alder Grove Charter School 2 — Enrollment & Outcomes Snapshot

Public · vs. 10 most similar nearby schools

  • Senior-class enrollment is down 38% (52→32 from 2018 to 2026), trailing the peer-group median of +15%.
  • Enrollment has been growing (+1.6%/yr); projects to ~528 by 2029.

Enrollment projection

503 students (2026)
~528 projected (2029)
at +1.6%/yr

Your school vs. its 10 most similar nearby schools

School Type Size UC Reach Enroll. trend
Alder Grove Charter School 2 Public 503 -38%
Peer-group median 7.6% +15%
Northern United - Humboldt Charter Public 349 -6%
Mckinleyville High School Public 574 2.5% -4%
Eureka Senior High School Public 1159 8.9% -6%
Eureka Senior High Public 1159 3.8% +25%
Arcata High School Public 972 22.0% +36%
Redwood Coast Montessori Public 205 +150%
Fortuna Union High School Public 832 6.2% +5%
Pacific View Charter 2.0 Public 130 +33%
Academy of the Redwoods Public 151 51.1% +58%
Anderson High Public 497 -15%

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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