Elementary school (grades K-5) · Napa, CA
Stone Bridge
Federal NCES profile for Stone Bridge, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Stone Bridge earns 30/100 on the Resource Investment Index, with class sizes larger than 92% of California schools.
- #6 of 14
- elementary schools in Napa · Resource Index
- 30
- Resource Index · Lower
- 27.8:1
- large classes for California
- 12.7%
- free-lunch eligible
Stone Bridge has class sizes larger than 92% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Stone Bridge ranks #6 of 14 elementary schools in Napa, CA.
School address
NCES ID 060197810975 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+10 students YoY
Stone Bridge held near 277 students from 2022-23 to 2023-24 (+10 headcount).
Teacher FTE held 10.0 → 10.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+10 students YoY 060197810975 · Napa, CA Elementary · SMALL · CHARTER
278 enr · 27.8:1 · 12.7% lunch · RII 30
Nearest enrollment peer: Escambia County Middle School (278 students)
Stone Bridge held near 277 students from 2022-23 to 2023-24 (+10 headcount). Teacher FTE held 10.0 → 10.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
How Stone Bridge compares
Stone Bridge held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 27.8:1 | ▲ 29% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 12.7% | ▼ 77% | 55.5% | 51.7% |
| Enrollment | 278 | top 76% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators methodology
Student demographics
Largest group: White at 61.7% of enrollment.
Simpson diversity index - at 56.1, Stone Bridge is more mixed than the California school average of 46.0.
Programs
District finance for Stone Bridge District reports $10,109 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar elementary schools in Napa
6 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~278 students)
Frequently asked questions about Stone Bridge
How many students attend Stone Bridge?
Stone Bridge has 278 students enrolled. It is an elementary school in Napa, CA. CCD year-over-year: 267 (2022-23) → 277 (2023-24), nearly flat (+10).
What is the student-teacher ratio at Stone Bridge?
The student-teacher ratio at Stone Bridge is 27.8:1, which is 29% higher than the California average of 21.5:1 and 77% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Stone Bridge?
12.7% of students at Stone Bridge are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Stone Bridge?
The largest demographic group at Stone Bridge is White at 61.7% of enrollment, in Napa, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.1/100.
What is the Resource Investment Index for Stone Bridge?
Stone Bridge has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Stone Bridge rank among elementary schools in Napa?
By Resource Investment Index, Stone Bridge ranks #6 of 14 elementary schools in Napa, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Napa on the city page.
What other schools are in Stone Bridge District?
None; Stone Bridge District is a single-school charter district, and Stone Bridge is its only campus.