Morton Ranch H S
Public · Grades 9–12 · 2,944 students
Calvin Nelms H S
20625 Clay Rd, Katy, TX 77449
Grades
9–12
High
Students
183
Enrolled 2024–25
Students per teacher
17.6 : 1
Full-time teachers
District
Calvin Nelms Charter Schools
Harris County
Schola Grade A · Excellent
Letter grade (A–F) · compared with 1,433 Texas high schools · How we grade
Percentiles compare this school with other Texas high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Calvin Nelms H S
Calvin Nelms H S is a charter high school in Katy, Texas, serving grades 9–12. It is part of Calvin Nelms Charter Schools. The school is located in a large suburb in Harris County.
In the 2024–25 school year, 183 students were enrolled, with about 17.6 students for every full-time teacher. That ratio is larger than the typical Texas high school (13.7 students per teacher). As a charter school, it is publicly funded and tuition-free, but operates independently of the local district under a charter from State Board of Education. Its Schola Grade is A (excellent), compared with 1,433 Texas high schools.
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Charter School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 183 students
- Students per teacher
- 17.6 to 1
- Charter school
- Yes
- Charter authorizer
- State Board of Education
- Magnet school
- No
- Locale
- Suburb — Large
- School district
- Calvin Nelms Charter Schools
- County
- Harris County
- NCES school ID
- 480012408248
Schools near Calvin Nelms H S
All 113 schools in Katy →
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School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.