Columbia Elementary
22540 Parrotts Ferry Road, Columbia, CA 95310-9757
Summary
Columbia Elementary is badly underperforming.
Reading and math results average to the 31st percentile among comparable California schools.
Only 32.5% of students met California's reading standard, and it is trending down.
Math is weaker: 21.3% of students met California's math standard, and it is trending down.
Proficiency stats
| Current Reading Proficiency | 32.5% |
| Current Math Proficiency | 21.3% |
| Reading State Rank | 1,242/1,734 (28th percentile) |
| Math State Rank | 1,168/1,735 (33rd percentile) |
School information
| Student / Teacher Ratio | 17:1 |
| Student enrollment (2024–25) | 464 |
| Low-Income Students | 303 (65.3%) |
| English Learners | 12 (2.6%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 9.2 points from last year and fell 5.2 points over the full period. Math fell 9.1 points from last year and fell 9.8 points over the full period.
•Math -9.8 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Hispanic or Latino and Two or more races students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 21.3% to 41.3% across the grades shown. Overall, the school’s reading results rank No. 1,242 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 13.0-point reading income gap is narrower than the 16.5-point gap at a typical California K–8 school. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Two or more races students have the strongest math results at about 26% proficiency. The other reported groups range from about 13% to 24%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 8.0% to 36.4% across the grades shown. Overall, the school’s math results rank No. 1,168 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 16.0-point math income gap is about the same as the 15.5-point gap at a typical California K–8 school. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 802 schools for reading and 801 for math. The comparison uses 2026 California K–8 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Columbia Elementary rank in California?
Columbia Elementary ranks No. 1,242 of 1,734 in reading and No. 1,168 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Columbia Elementary compare with other schools in Tuolumne County?
Columbia Elementary is No. 7 in both reading and math proficiency among the 9 K–8 schools in Tuolumne County with 2026 results.
Explore schools in Tuolumne County