Enrollment
514
North Carolina · 2024-25 NCES data
Middle school (grades 6-8) · Salisbury, NC
Federal NCES profile for Knox Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
The verdict
Knox Middle earns 27/100 on the Resource Investment Index, with class sizes near the North Carolina median.
Knox Middle has class sizes near the North Carolina median. Computed live against every North Carolina school reporting to NCES.
By Resource Investment Index, Knox Middle ranks #1 of 4 middle schools in Salisbury, NC.
NCES ID 370405002252 Verify on NCES CCD record →
Enrollment
514
North Carolina · 2024-25 NCES data
Teachers (FTE)
33.0
Federal CCD staff survey
Students per teacher
15.6:1
vs 15.8:1 North Carolina avg
-1% vs state
Free-lunch eligible
94.9%
vs 66.0% North Carolina avg
+44% vs state
How Knox Middle compares with North Carolina and U.S. medians
At or below state median
15.6:1 - 0.2 below the North Carolina state median of 15.8:1, indicating smaller average class loads than typical schools in the state.
Knox Middle is a high-poverty, mid-sized middle school in Salisbury, North Carolina, enrolling 514 students.
At 15.6:1, its student-teacher ratio sits close to the North Carolina median, within a few percentage points of the 15.8:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 94.9% of students eligible for free meals.
With 514 students, its enrollment sits close to the North Carolina median campus size.
Its Resource Investment Index trails 95% of the 2,698 North Carolina schools with a score on record, one of the lower results on this measure.
Among 576 similarly sized, similarly resourced-need North Carolina schools statewide, it ranks #522, in the lower tier once campus size and economic need are matched.
Counselor access is stretched at roughly 514 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 51.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 21.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 316 in- and out-of-school suspensions were reported for 514 students in the 2021-22 Civil Rights Data Collection.
Among Salisbury's middle schools, it stands alongside Erwin Middle (763 students): Knox Middle is smaller than that campus by headcount and runs leaner classes (15.6:1 vs 15.9:1).
Rowan-Salisbury Schools also operates Carson High (1,063 students) and West Rowan High (988 students) alongside Knox Middle.
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
Knox Middle on the metrics families compare, against North Carolina and U.S. means.
| Metric | This school | vs North Carolina | North Carolina avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.6:1 | ▼ 1% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 94.9% | ▲ 44% | 66.0% | 51.7% |
| Enrollment | 514 | top 47% | - | - |
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.
District-wide per-pupil expenditure for Rowan-Salisbury Schools, which includes Knox Middle.
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 |
|---|---|---|---|
| Carson High | Larger | Lower economic need | Higher S:T ratio |
| West Rowan High | Larger | Lower economic need | Similar S:T ratio |
| East Rowan High | Larger | Lower economic need | Similar S:T ratio |
| South Rowan High | Larger | Lower economic need | Higher S:T ratio |
| Salisbury High | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Knox Middle's own figures; each column derives from NCES Common Core of Data.
3 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of North Carolina, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Knox Middle'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.
Knox Middle has 514 students enrolled. It is a middle school in Salisbury, NC.
The student-teacher ratio at Knox Middle is 15.6:1, which is 1% lower than the North Carolina average of 15.8:1 and 1% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
94.9% of students at Knox Middle are eligible for free lunch, compared to the North Carolina average of 66.0%.
Knox Middle has a Resource Investment Index of 27/100 (lower 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, Knox Middle ranks #1 of 4 middle schools in Salisbury, NC. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Salisbury on the city page.
Knox Middle earns 27/100 on the Resource Investment Index, with class sizes near the North Carolina median. 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 Knox Middle, Rowan-Salisbury Schools also operates Carson High (1,063 students), West Rowan High (988 students), and East Rowan High (986 students). See the Rowan-Salisbury Schools 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, “Knox Middle, Salisbury NC.” 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/knox-middle-nc
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