Total enrollment
9,906
-1,047 (-10%) vs SY 2020-21
22 schools in San Mateo-Foster City
California · 9,906 students · 2 cities
Public K-12 enrollment in San Mateo-Foster City totals about 9,906 students across 22 schools (an average of 450 students per school).
4-year change in San Mateo-Foster City
SY 2020-21 vs SY 2024-25School count
22
+1 (+5%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How San Mateo-Foster City ranks
Among districts| Measure | This district | In California | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 52.0% | #141 of 534 | N/A |
| Enrollment ranked largest first | 9,906 | #148 of 587 | #925 of 9,234 |
| Number of schools ranked most first | 22 | #90 of 587 | N/A |
| Students per teacher ranked fewest first | 21.0:1 | #225 of 587 | #8,536 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 37.9% | #449 of 587 | #5,775 of 8,164 |
| Diversity index ranked most diverse first | 70.9% | #44 of 530 | #304 of 6,853 |
Districts need at least 2 schools and 500 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.
Inside San Mateo-Foster City
State test results across the district's 21 scored schools run from College Park Elementary at 82.7% proficient to San Mateo Park Elementary at 12.5%, a gap of 70.1 points. That is the 20th widest gap among 458 California districts with four or more scored schools.
Since 2017-18, the 20 district schools that reported both years went from 11,815 to 9,558 students (down 19%) and from 499 to 458 full-time teachers (down 8%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
About San Mateo-Foster City
As a compact district in California, San Mateo-Foster City teaches 9,906 students across 22 schools.
On the level-by-level breakdown, San Mateo-Foster City spans 19 elementary and 3 middle.
On a per-school basis, San Mateo-Foster City runs about 450 students per school, 22% meaningfully below the state mean of roughly 578.
Trend over the past 4 years. Combined enrollment now sits at 9,906 students, contracted 10% from the 10,953 reported in SY 2020-21. San Mateo-Foster City now counts 22 public schools, up from 21 in SY 2020-21.
On this page, the community for San Mateo-Foster City discusses open enrollment windows, redistricting talk, and busing logistics. Members of the local community share what they see day-to-day.