Compiled from official source data by PlainSchools.
14 public K-12 schools in Azusa 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, Azusa has more public-school enrollment than 62% of the 4,487 US cities in this directory. Azusa's average Resource Investment Index falls in the lower portion of the 4,487-city comparison set. The index is a resource snapshot, not an academic grade: it reflects the federal staffing, counselor, gifted-program, and attendance fields available for local campuses. The most useful next step is to open the individual schools below and identify which component is pulling each score down, because the same city average can hide very different campus-level constraints.
The school portfolio is elementary-weighted
9 of Azusa's 14 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 3 middle and 2 high-school records. Families comparing later grades should rely on those individual rows rather than the all-school mean.
High measured need meets a thin staffing ratio
Azusa's reporting schools show 76.0% free-lunch eligibility across measured enrollment, alongside an average 21.1:1 student-teacher ratio. These are separate constraints: one describes the economic context of enrolled students and the other compares student and teacher headcounts. The 39-point gap between Sierra High and Longfellow is therefore more useful than the city mean alone. A school with a similar ratio may still report different counselor access, attendance, or gifted-program availability, so open the campus records before drawing conclusions about student support.
City enrollment
Top 38%
School count
Top 25%
Resource Index average
12th percentile
Teacher staffing
11th percentile
Azusa High accounts for 27.5% of all Azusa public-school enrollment
That dominant concentration means Azusa-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.
Azusa school enrollment varies 77× across entities
Azusa school enrollment ranges from 21 students (lowest) to 1,609 students (highest), a spread of 1,588 students. That ratio is an extreme outlier spread — among the widest gaps observed anywhere in this dataset. 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.
Azusa operates one school district — a single-district system
Azusa's listed schools share one district boundary, budget authority, and reporting chain. That makes citywide and districtwide governance easier to compare, but it does not make individual campuses uniform: grade configuration, staffing, programs, and student need can still vary materially within the same school district.
Azusa student-teacher ratio is 21.1:1 — 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.
Most racially and ethnically mixed schools in Azusa
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 Azusa school has the highest Resource Investment Index? ▼
Sierra High has the highest Resource Investment Index among the Azusa 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 Azusa, CA? ▼
Azusa has 14 public schools with a total enrollment of 5,851 students. Average student-teacher ratio: 21.1:1.
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.
