The brief
A charter high school in Katy, TX where students score 80 points above what's typical for similar communities.
It ranks 1,409 of 8,584 schools in Texas and 1 of 2 in Calvin Nelms Charter Schools.
Calvin Nelms H S is a charter school: it enrolls by application rather than by address, so check its enrollment process directly before choosing a neighborhood for it.
- 202580%
- 202472%
- 2022–2023: no results on file
- 2021*65%
- 2020*65%
- 201970%
- 201870%
* A COVID-affected year: test participation was uneven nationwide, so the model weights it at half.
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2025
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.
Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.
Full Profile · 4/4 metrics
Multi-year averages used by the rating model: math 70% (multi-year average, 2009-2025) · reading/ELA 80% (multi-year average, 2009-2025).
- 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 · 2025 STAAR · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 STAAR · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- State assessments · 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, 2009-2025; directory SY 2023–24
The neighborhood
Where it sits, and what the area looks like.Open the Houston school map to see school quality against home prices across the metro.
The area
- Median income
- $85,934
- Median home value
- $236,400
- Median rent
- $1,755/mo
- College educated
- 28.4%
- Homeownership
- 70.5%
- Poverty rate
- 11%
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 77449; this is area context, not an attendance boundary.
Getting around
- Walk Score
- 8
- Car-Dependent
- Bike Score
- 27
- Somewhat Bikeable
- City reported crime
- 3,073/100K
- Reported Part-1 offenses (violent + property + arson) per 100,000 residents, from the FBI Uniform Crime Reporting program for Katy. This is a city-level reported-crime measure, not a school safety rating.
Walk, transit and bike scores by
FBI Uniform Crime Reporting · 2025 · city context (Katy), not school-level safety or attendance eligibility. Source details
Source period: 2025. Freshness not available.
Programs and who goes here
What the campus offers, and who it enrolls.Programs
- Athletics
- 8 sports
- 4 boys' · 4 girls' · 9 teams (incl. JV) · CRDC via Urban Institute · SY 2021–22
- Advanced STEM courses
- 4 of 5
- Algebra II, Advanced Math, Calculus, Chemistry, Physics · CRDC via Urban Institute · SY 2021–22
Compare nearby
Grade-compatible schools using the same rating model.- 8.0Compare →
- Calvin Nelms H S7.8
- 7.0Compare →
- 6.2Compare →
- 6.1Compare →
- 5.8Compare →
- 5.4Compare →
- 5.3Compare →
- 5.1Compare →
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
The record
What is on file, and where each number came from.Questions families ask
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 #1,409 of 8,584 schools in TX.
What is Calvin Nelms H S's MySchoolScout rating?
Calvin Nelms H S has a current MySchoolScout rating of 7.8 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, 2009-2025) and 80% reading/ELA proficiency (multi-year average, 2009-2025).
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 facts
- Grades
- 9th – 12th
- Enrollment
- 168
- Student-teacher ratio
- 16.8:1
- Teachers (FTE)
- 10
- Type
- Regular
- Title I
- No
- Setting
- Large Suburb
- County
- Harris County
- Phone
- (281) 398-8031
- 4-year graduation
- 90%+
- Class of 2023
- Rank in district
- #1 of 2
- Schools in district
- 2
- District spending per student
- $9,891
- NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- Not available
- The source release did not match this district identifier.
- Area population (ZIP 77449)
- 123,042
- Area average commute
- 35.6 min
- Area median age
- 34.3
NCES Common Core of Data (CCD) (SY 2023–24).
Sources and official links
Keep exploring
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Data from NCES Common Core of Data, Texas Education Agency, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.