| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Middletown Unified School District | Cobb | 5/10 Average · 49th pct | 1,449 | 6 | K–12 | 3 |
| Lucerne Elementary School District | Glenhaven | 3/10 Below Average · 29th pct | 300 | 1 | K–8 | 2 |
| Upper Lake Unified School District | Nice | 1/10 Poor · 9th pct | 891 | 5 | K–12 | 3 |
| Kelseyville Unified School District | Finley | 1/10 Poor · 8th pct | 1,833 | 7 | K–12 | 2 |
| Lakeport Unified School District | Lakeport | 1/10 Poor · 8th pct | 1,349 | 6 | K–12 | 1 |
| Konocti Unified School District | Clearlake | 1/10 Poor · 5th pct | 3,816 | 11 | K–12 | 3 |
How Lake County compares
Together they enroll 9,638 students across 36 schools. The largest is Konocti Unified School District with 3,816 students. Districts here average 2.0/10, below the California average of 5.7/10. Ratings range from 1/10 to 5/10.
School Districts in Lake County, California
Lake County has 6 public school districts covering 14 zip codes. The top-rated district in Lake County is Middletown 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 Lake County, CA?
6 school districts serve zip codes in Lake 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 Lake County, CA?
Of the districts serving Lake County, Middletown Unified School District has the highest rating on this site at 5/10. That places it in the 49th 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.