Excellent
#969 of 8,552 schools in TX
Top 11% in state
Calvin Nelms H S
High School · Calvin Nelms Charter Schools · Katy, TX
A charter high school in Katy, TX serving grades 9th – 12th.
20625 CLAY RD, Katy, TX 77449
- Math 58% vs TX 44% (2024)
- Reading 86% vs TX 54% (2024)
- 90%+ 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Calvin Nelms H S score 72% proficient, which is below what's typical for similar communities (expected: 73%).
2024 STAAR proficiency
Most recent published year. School vs. TX average.
Trend
→ SteadyProficiency is up 13 points across the 16-year record (2009–2024) and has held near 72% recently.
Show all 14 years
Multi-year averages used by the rating model: math 70% (multi-year average, 2009-2024) · reading/ELA 79% (multi-year average, 2009-2024)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 28 test records from TX state assessments and EdFacts (NCES).
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Calvin Nelms H S sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Houston map →
Getting around & local context
- Walk 8Car-Dependent
- Bike 27Somewhat Bikeable
- City Safety: High3,484/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Katy), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$85,934
Median home value
$236,400
Median rent
$1,755/mo
College educated
28.4%
Homeownership
70.5%
Poverty rate
11%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 77449; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Westside Baptist AcademyPrivate · tuition | 8.3private | K–12 | 0.7 mi | 64 | Compare → |
| Morton Ranch H SEnrollment path unverified | 6.4 | 9–12 | 1.9 mi | 2,832 | Compare → |
| British International School of HoustonPrivate · tuition | 6.3private | PK–12 | 2.1 mi | 742 | Compare → |
| Cypress Lakes H SEnrollment path unverified | 6.0 | 9–12 | 2.5 mi | 3,256 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Calvin Nelms Charter Schools
- Schools in district
- 2
- Rank in district
- #1 of 2
- District spending per student
- $9,891NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- The source release did not match this district identifier.
Calvin Nelms H S is listed in CALVIN NELMS CHARTER SCHOOLS; a district label does not verify attendance for an address.
About Calvin Nelms H S
Calvin Nelms H S is a public high school in Katy, TX, part of Calvin Nelms Charter Schools, serving approximately 168 students in grades 9th-12th with a 16.8:1 student-teacher ratio. It holds a MySchoolScout rating of 8.3 out of 10 and ranks #969 of 8,552 schools in TX. State assessment records show 70% math proficiency (multi-year average, 2009-2024) and 79% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Calvin Nelms H S
What grades does Calvin Nelms H S serve?
Calvin Nelms H S serves students in grades 9th through 12th.
How many students attend Calvin Nelms H S?
Calvin Nelms H S has an enrollment of approximately 168 students.
What is the student-teacher ratio at Calvin Nelms H S?
The student-teacher ratio at Calvin Nelms H S is 16.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Calvin Nelms H S rank in TX?
Calvin Nelms H S ranks #969 of 8,552 schools in TX.
What is Calvin Nelms H S's MySchoolScout rating?
Calvin Nelms H S has a current MySchoolScout rating of 8.3 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Calvin Nelms H S?
Based on loaded state assessment records, Calvin Nelms H S has 70% math proficiency (multi-year average, 2009-2024) and 79% reading/ELA proficiency (multi-year average, 2009-2024).
Is Calvin Nelms H S a charter school?
Yes, Calvin Nelms H S is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Calvin Nelms H S a Title I school?
No, Calvin Nelms H S is not currently a Title I school.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 168
- Student-Teacher Ratio
- 16.8:1
- Teachers (FTE)
- 10
- Type
- regular
- Setting
- Large Suburb
- County
- Harris County
- Chronic Absenteeism (SY 2022-23)
- 6.5%
- Phone
- (281) 398-8031
- 4-Year Graduation
- 90%+
- Area population (ZIP 77449)
- 123,042
- Area average commute
- 35.6 min
- Area median age
- 34.3
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 STAAR · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 STAAR. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 STAAR · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 STAAR. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 77449; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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