Enrollment
160
Texas · 2024-25 NCES data
Middle school (grades 6-8) · Katy, TX
Federal NCES profile for Calvin Nelms Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
The verdict
Calvin Nelms Middle earns 49/100 on the Resource Investment Index, with class sizes larger than 96% of Texas schools.
Calvin Nelms Middle has class sizes larger than 96% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Calvin Nelms Middle ranks #13 of 18 middle schools in Katy, TX.
NCES ID 480012409258 Verify on NCES CCD record →
Enrollment
160
Texas · 2024-25 NCES data
Teachers (FTE)
7.0
Federal CCD staff survey
Students per teacher
22.9:1
vs 14.7:1 Texas avg
+56% vs state
How Calvin Nelms Middle compares with Texas and U.S. medians
Larger classes than state median
22.9:1 - 8.2 above the Texas state median of 14.7:1, indicating larger average class loads than typical schools in the state.
Calvin Nelms Middle is a small charter middle school in Katy, Texas, enrolling 160 students.
Class loads run heavy: 22.9:1 is larger than about 96% of Texas schools and 56% above the 14.7:1 state mean, so each teacher carries more students than is typical.
Enrollment of 160 puts it in the smaller third of Texas schools by headcount.
Its Resource Investment Index lands in the upper third of 8,960 scored Texas schools.
Its student body is led by Hispanic or Latino (62%) and African American (15%) (diversity index 57/100).
Counselor coverage is strong, about 160 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 4.4% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Calvin Nelms Charter Schools spends $9,566 per pupil, 30% below the Texas average, a leaner-resourced district than most.
Its district, Calvin Nelms Charter Schools, also runs Calvin Nelms H S (183 students).
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
Calvin Nelms Middle on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.9:1 | ▲ 56% | 14.7:1 | 15.7:1 |
| Enrollment | 160 | top 87% | - | - |
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 61.9% of enrollment.
Simpson diversity index - at 57.4, Calvin Nelms Middle is more mixed than the Texas school average of 44.7.
District-wide per-pupil expenditure for Calvin Nelms Charter Schools, which includes Calvin Nelms 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 |
|---|---|---|---|
| Calvin Nelms H S | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Calvin Nelms Middle's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Texas, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Calvin Nelms 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.
Calvin Nelms Middle has 160 students enrolled. It is a middle school in Katy, TX.
The student-teacher ratio at Calvin Nelms Middle is 22.9:1, which is 56% higher than the Texas average of 14.7:1 and 46% higher than the national average of 15.7:1.
The largest demographic group at Calvin Nelms Middle is Hispanic or Latino at 61.9% of enrollment, in Katy, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.4/100.
Calvin Nelms Middle has a Resource Investment Index of 49/100 (higher 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, Calvin Nelms Middle ranks #13 of 18 middle schools in Katy, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Katy on the city page.
Calvin Nelms Middle earns 49/100 on the Resource Investment Index, with class sizes larger than 96% of Texas 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 Calvin Nelms Middle, Calvin Nelms Charter Schools also operates Calvin Nelms H S (183 students). See the Calvin Nelms Charter 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, “Calvin Nelms Middle, Katy TX.” 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/calvin-nelms-middle-tx
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