Total enrollment
4,732
-67 (-1%) vs SY 2017-18
Colusa County
California · Public K-12
The schools list below covers the full public K-12 directory for Colusa County: 23 campuses, 4,732 students, Colusa Unified as the largest district. By level, that breaks down as 6 elementary, 5 middle, and 10 high schools.
7-year change in Colusa County
SY 2017-18 vs SY 2024-25School count
21
0 (0%) vs SY 2017-18
% White
15%
was 19%
% Hispanic
80%
was 77%
% Black
1%
was 1%
% Asian
1%
was 1%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Colusa County ranks
Among counties| Measure | This county | In California | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 30.2% | #49 of 55 | N/A |
| Enrollment ranked largest first | 4,732 | #47 of 55 | #1,389 of 2,745 |
| Number of schools ranked most first | 21 | #47 of 55 | N/A |
| Students per teacher ranked fewest first | 19.2:1 | #11 of 55 | #2,533 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 78.2% | #3 of 55 | #524 of 2,526 |
| Diversity index ranked most diverse first | 33.1% | #53 of 55 | #1,703 of 2,707 |
Counties need at least 3 schools and 1,000 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Colusa County school rankings
Residents
21,984
all ages · ACS 5-yr
Schools
23
7 districts
Enrollment
4,732
students · NCES CCD
Median income
$75,672
Below California avg
Free/reduced lunch
78.2%
Above California avg
Elementary
6
1,697 students
Middle
5
1,253 students
High
10
1,741 students
Combined / other
2
41 students
LARGEST DISTRICT
Colusa Unified
1,470 students · 7 districts in Colusa County
County vs. school enrollment demographics
Left bar is the racial makeup of Colusa County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
16.4%
adults 25+
Poverty rate
9.6%
ACS 5-year
Unemployment
9.8%
civilian labor
Median age
36
26.9% under 18
Test scores in Colusa County
Latest 2024-25 ELA proficiency, 13 schools ranked. California state average: 49.4%.
Top 5 schools (ELA)
- Pierce High· 63.9%
- Colusa High· 55.1%
- Maxwell Elementary· 46.4%
- Lloyd G. Johnson Junior High· 41.0%
- Williams Junior/Senior High· 37.1%
Lowest 5 schools (ELA)
- Williams Upper Elementary· 25.0%
- Maxwell Middle· 27.7%
- Princeton Elementary· 29.8%
- George T. Egling Middle· 30.4%
- Williams Primary Elementary· 30.4%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Arbuckle Elementary | Arbuckle | Elementary | KG-05 | 604 | · |
| Williams Junior/Senior High | Williams | High | 07-12 | 588 | · |
| George T. Egling Middle | Colusa | Middle | 04-08 | 553 | · |
| Pierce High | Arbuckle | High | 09-12 | 463 | · |
| Colusa High | Colusa | High | 09-12 | 431 | · |
| James M. Burchfield Primary | Colusa | Elementary | KG-03 | 430 | · |
| Williams Primary Elementary | Williams | Elementary | KG-03 | 407 | · |
| Lloyd G. Johnson Junior High | Arbuckle | Middle | 06-08 | 321 | · |
| Williams Upper Elementary | Williams | Middle | 04-06 | 289 | · |
| Maxwell Elementary | Maxwell | Elementary | KG-05 | 124 | · |
| Maxwell Sr High | Maxwell | High | 09-12 | 117 | · |
| Maxwell Middle | Maxwell | Middle | 06-08 | 90 | · |
| Princeton Elementary | Princeton | Elementary | KG-08 | 83 | · |
| Grand Island Elementary | Grimes | Elementary | KG-06 | 49 | · |
| Princeton High | Princeton | High | 09-12 | 43 | · |
| S. William Abel Academy | Williams | High | 07-12 | 43 | · |
| Colusa Alternative Home | Colusa | Combined | KG-12 | 29 | · |
| Colusa Alternative High (Continuation) | Colusa | High | 09-12 | 27 | · |
| Mid Valley High (Continuation) | Williams | High | 10-12 | 19 | · |
| Coastal Buttes Academy | Williams | Combined | KG-12 | 12 | · |
| Arbuckle Alternative High (Continuation) | Arbuckle | High | 09-12 | 10 | · |
| Indian Valley Intermediate | Stonyford | Middle | 05-08 | 0 | · |
| Princeton Landing High | Princeton | High | 10-12 | 0 | · |
Cities in Colusa County
About Colusa County
Across the rural-scale California county of Colusa County of about 21,984 residents, the public-school footprint covers 23 schools and about 4,732 students.
Looking at the broader picture, census numbers show typical household earnings sit around $75,672, roughly 16% of adults have completed at least a four-year degree, and the poverty rate is around 10%. That income level is 15% lower than the California median.
On the level-by-level breakdown, Colusa County covers 6 elementary schools (1,697 students), 5 middle schools (1,253), 10 high schools (1,741), and 2 combined or other schools.
Colusa Unified is the biggest district by enrollment, covering about 1,470 students across Colusa County.
Five-year track record. Total public-school enrollment in Colusa County has stayed largely flat since SY 2017-18, moving from about 4,799 students to 4,732. Demographically, the White share of enrollment decreased from 19% to 15%.
On allk12, the community for Colusa County discusses comparison threads between local schools and program reviews. Parents, students, and educators in the area can post or comment.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data