Compiled from official source data by PlainSchools.
12 public K-12 schools in San Luis 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, San Luis has more public-school enrollment than 76% of the 4,487 US cities in this directory. San Luis'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
7 of San Luis's 12 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 2 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
San Luis's reporting schools show 69.9% free-lunch eligibility across measured enrollment, alongside an average 29.2:1 student-teacher ratio. These are separate constraints: one describes the economic context of enrolled students and the other compares student and teacher headcounts. The 32-point gap between San Luis Pre-School and Sun Valley Elementary School 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 24%
School count
Top 31%
Resource Index average
2nd percentile
Teacher staffing
1st percentile
San Luis High School accounts for 31.5% of all San Luis public-school enrollment
That dominant concentration means San Luis-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.
San Luis school enrollment varies 15× across entities
San Luis school enrollment ranges from 176 students (lowest) to 2,682 students (highest), a spread of 2,506 students. That spread reflects typical urban portfolio variation between specialty programs and large neighbourhood schools. 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 sits between 62.5% and 75%, above a simple majority but below the highest descriptive band used here. 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.
San Luis operates 5 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.
San Luis student-teacher ratio is 29.2:1 — well above typical (typically associated with unusually large scale or acute resource constraints)
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 Values this far above typical often signal acute resource constraints or a structurally different scale than most peers — worth reading alongside the underlying counts, not the ratio alone.
17% 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.
Which San Luis school has the highest Resource Investment Index? ▼
San Luis Pre-School has the highest Resource Investment Index among the San Luis schools in this federal-data comparison at 32/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
How many schools are in San Luis, AZ? ▼
San Luis has 12 public schools with a total enrollment of 8,509 students. 2 are charter schools. Average student-teacher ratio: 29.2:1.
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.
