Enrollment
668
Arkansas · 2024-25 NCES data
Middle school (grades 6-8) · Springdale, AR
Federal NCES profile for Sonora Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Sonora Middle School earns 38/100 on the Resource Investment Index, with class sizes near the Arkansas median. It is also more racially and ethnically mixed than most Arkansas schools.
Sonora Middle School has class sizes near the Arkansas median. Computed live against every Arkansas school reporting to NCES.
By Resource Investment Index, Sonora Middle School ranks #4 of 4 middle schools in Springdale, AR.
NCES ID 051266001565 Verify on NCES CCD record →
Enrollment
668
Arkansas · 2024-25 NCES data
Teachers (FTE)
51.0
Federal CCD staff survey
Students per teacher
13.1:1
vs 13.6:1 Arkansas avg
-4% vs state
Free-lunch eligible
67.6%
vs 59.2% Arkansas avg
+14% vs state
How Sonora Middle School compares with Arkansas and U.S. medians
At or below state median
13.1:1 - 0.5 below the Arkansas state median of 13.6:1, indicating smaller average class loads than typical schools in the state.
Sonora Middle School is a higher-need, large middle school in Springdale, Arkansas, enrolling 668 students.
At 13.1:1, its student-teacher ratio sits close to the Arkansas median, within a few percentage points of the 13.6:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 67.6% of students eligible for free meals.
Enrollment of 668 puts it in the larger third of Arkansas schools by headcount.
Its Resource Investment Index lands in the lower third of 1,066 scored Arkansas schools.
Against 96 statewide peers matched on enrollment and economic need, it ranks mid-pack at #48.
Its student body is led by Hispanic or Latino (48%) and Native Hawaiian / Pacific Islander (25%), more mixed than most schools in the state (diversity index 66/100).
Counselor availability sits well past the ASCA benchmark, roughly 334 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 45.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 18.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 204 in- and out-of-school suspensions were reported for 668 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 5 expulsions at this campus for 2021-22.
Springdale School District also operates Har-Ber High School (2,271 students) and Springdale High School (2,207 students) alongside Sonora Middle School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Sonora Middle School on the metrics families compare, against Arkansas and U.S. means.
| Metric | This school | vs Arkansas | Arkansas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.1:1 | ▼ 4% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 67.6% | ▲ 14% | 59.2% | 51.7% |
| Enrollment | 668 | top 15% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Hispanic or Latino at 48.1% of enrollment.
Simpson diversity index - at 65.9, Sonora Middle School is more mixed than the Arkansas school average of 40.4.
District-wide per-pupil expenditure for Springdale School District, which includes Sonora Middle School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Har-Ber High School | Larger | Lower economic need | Similar S:T ratio |
| Springdale High School | Larger | Similar economic need | Similar S:T ratio |
| Springdale School of Innovations | Larger | Lower economic need | Lower S:T ratio |
| Hunt Elementary School | Larger | Lower economic need | Higher S:T ratio |
| Central Junior High School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Sonora Middle School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Arkansas, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Sonora Middle School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Sonora Middle School has 668 students enrolled. It is a middle school in Springdale, AR.
The student-teacher ratio at Sonora Middle School is 13.1:1, which is 4% lower than the Arkansas average of 13.6:1 and 17% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
67.6% of students at Sonora Middle School are eligible for free lunch, compared to the Arkansas average of 59.2%.
The largest demographic group at Sonora Middle School is Hispanic or Latino at 48.1% of enrollment, in Springdale, AR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.9/100.
Sonora Middle School has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Sonora Middle School ranks #4 of 4 middle schools in Springdale, AR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Springdale on the city page.
Sonora Middle School earns 38/100 on the Resource Investment Index, with class sizes near the Arkansas median. It is also more racially and ethnically mixed than most Arkansas schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Sonora Middle School, Springdale School District also operates Har-Ber High School (2,271 students), Springdale High School (2,207 students), and Springdale School of Innovations (1,976 students). See the Springdale School District district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Sonora Middle School, Springdale AR.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/sonora-middle-school-ar/
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