Compiled from official source data by PlainSchools.
16 public K-12 schools in Sun Valley from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
According to NCES CCD 2024-25, Sun Valley has more public-school enrollment than 80% of the 4,487 US cities in this directory. Sun Valley sits in the broad middle of the national city distribution rather than at a single obvious extreme. Its scale, average Resource Investment Index, and staffing position need to be read together: a middle placement on one measure does not cancel a stronger or weaker result on another. The percentile panel makes those dimensions explicit, and the school table shows where the city aggregate breaks into materially different campus profiles.
The school portfolio is elementary-weighted
8 of Sun Valley's 16 listed schools are elementary campuses. That composition means citywide enrollment and staffing averages are influenced more by early-grade operating patterns than by the city's 1 middle and 2 high-school records. Families comparing later grades should rely on those individual rows rather than the all-school mean.
Economic need crosses separate district systems
84.2% of enrollment in reporting Sun Valley schools is eligible for free lunch, while the city list spans 6 districts. That pairing makes a citywide average especially easy to misread: the need measure follows students, but staffing decisions, calendars, program rules, and federal allocations are administered through separate district structures. The 27-point gap between John H. Francis Polytechnic and Alliance Marine - Innovation and Technology 6-12 Complex shows how much reported resource capacity can vary inside the same municipal label. Compare schools within the same district first, then use the city view to see how those local systems differ.
City enrollment
Top 20%
School count
Top 21%
Resource Index average
44th percentile
Teacher staffing
18th percentile
John H. Francis Polytechnic accounts for 21.6% of all Sun Valley public-school enrollment
That concentration means Sun Valley-wide averages can mask substantial variation outside the largest entity. Grade level: High. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.
Sun Valley school enrollment varies 29× across entities
Sun Valley school enrollment ranges from 74 students (lowest) to 2,124 students (highest), a spread of 2,050 students. That spread is wider than typical and predicts noticeable gaps in service quality between the highest and lowest areas. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.
The reported share is at least 75%, indicating a high concentration of measured economic need. Title I operates under the Every Student Succeeds Act (ESSA, 2015), but its statutory allocation uses additional LEA-level counts and rules not represented by this average. This percentage is an economic-need context measure; it does not establish a Title I award, show dollars received, or describe how funds are distributed among campuses.
Sun Valley operates 6 school districts — among the most fragmented governance structures in the country
Each school district has independent budgeting, hiring, and service delivery authority. The fragmentation reflects historical patterns of inter-municipal boundary lines that pre-date modern city growth, students in different parts of the same city can attend different districts with different per-pupil spending, calendars, and graduation requirements. Per-region variation is largest in fragmented systems because each school district sets its own budget, contracts, and priorities without higher-level coordination above the regulatory floor.
Sun Valley student-teacher ratio is 19.5:1 — high (typically associated with larger urban scale or staffing constraints that have widened the headcount gap)
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Higher values may reflect larger urban scale or recent resource constraints that have widened the gap.
31% of the city's listed public-school campuses are reported as charter schools in NCES CCD. Charter status identifies a different governance arrangement; it does not establish admissions availability, academic quality, or the share of city students enrolled in those campuses. Open each school record to compare enrollment and staffing directly.
Most racially and ethnically mixed schools in Sun Valley
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
Which Sun Valley school has the highest Resource Investment Index? ▼
John H. Francis Polytechnic has the highest Resource Investment Index among the Sun Valley schools in this federal-data comparison at 54/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
How many schools are in Sun Valley, CA? ▼
Sun Valley has 16 public schools with a total enrollment of 9,844 students. 5 are charter schools. Average student-teacher ratio: 19.5:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio,
counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes:
verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.
