| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Pierce Joint Unified School District | Arbuckle | 5/10 Average · 43rd pct | 1,490 | 5 | K–12 | 2 |
| Maxwell Unified School District | Maxwell | 4/10 Below Average · 37th pct | 340 | 3 | K–12 | 2 |
| Colusa Unified School District | Colusa | 4/10 Below Average · 32nd pct | 1,533 | 5 | K–12 | 1 |
| Princeton Joint Unified School District | Princeton | 2/10 Poor · 19th pct | 133 | 3 | K–12 | 1 |
| Williams Unified School District | Williams | 2/10 Poor · 14th pct | 1,350 | 4 | K–12 | 1 |
How Colusa County compares
Together they enroll 4,846 students across 20 schools. The largest is Colusa Unified School District with 1,533 students. Districts here average 3.4/10, below the California average of 5.7/10. Ratings range from 2/10 to 5/10.
School Districts in Colusa County, California
Colusa County has 5 public school districts covering 7 zip codes. The top-rated district in Colusa County is Pierce Joint Unified School District (5/10). Ratings are based on the share of students proficient in reading and math on state assessments (CAASPP 2023–24), ranked against all districts in California. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.
Frequently Asked Questions
How many school districts are in Colusa County, CA?
5 school districts serve zip codes in Colusa County, CA. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Colusa County, CA?
Of the districts serving Colusa County, Pierce Joint Unified School District has the highest rating on this site at 5/10. That places it in the 43rd percentile among California school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on California reading and math assessments, ranked against other districts in California and converted to a 1–10 scale. Percentiles compare districts within California only, never across state lines.