Calvin Nelms High School
Public high school (charter) in Katy, Texas · Calvin Nelms Charter Schools · Grades 9–12
Calvin Nelms High School serves 183 students in grades 9–12 in Katy (Harris County). It is one of 2 schools in Calvin Nelms Charter Schools. By enrollment it is the 1384th largest of 1,920 public high schools in Texas (median 457 students). With 17.6 students per full-time teacher, it has more students per teacher than the typical Texas high school (14).
Source: NCES CCD 2024-25. Rank and medians compare all 1,920 Texas high schools with enrollment listed on this site.
Source: NCES CCD 2024-25. Students per teacher = students ÷ 10.42 full-time-equivalent teachers.
School facts
| School type | Regular School, charter |
| Level | High |
| Grades | 9–12 |
| District | Calvin Nelms Charter Schools |
| County | Harris County |
| Area type | Suburb, large |
| School meals | Not in the National School Lunch Program |
| NCES school ID | 480012408248 |
Source: NCES CCD 2024-25 directory and school characteristics; area type from NCES EDGE locale codes.
Compared with the district and Texas
| This school | Calvin Nelms Charter Schools | Texas high schools (median) | |
|---|---|---|---|
| Students | 183 | 343 | 457 |
| Students per teacher | 17.6 | 19 | 14 |
| Free or reduced-price lunch eligible | – | – | 63.8% |
Source: NCES CCD 2024-25. District figures add up its schools. 83% of Texas high schools have fewer students per teacher than this school (share of schools with a lower ratio). State test results aren't published here yet.
Calvin Nelms High School in context
Size
Calvin Nelms High School is the only high school in Calvin Nelms Charter Schools. Its 183 students are 53.4% of the district's 343. Its 8 closest high schools sit a median 3.2 miles away with a median enrollment of 3,077; Calvin Nelms High School is smaller than most of them.
As a charter school it is publicly funded and charges no tuition, but it is run under a charter rather than directly by a local school board.
Source: NCES CCD 2024-25 enrollment and school type. Share of district students = this school's students ÷ the district's students. Nearest schools by straight-line distance between NCES EDGE locations.
Grades
Its largest grade is grade 11 with 54 students, and its smallest is grade 12 with 37, against an average of 46 per grade. This year grade 12 has 24% fewer students than grade 9 (37 against 49). Each grade is a different group of students, so the gap is not a dropout or growth rate.
Source: NCES CCD 2024-25 membership by grade.
Students
The largest group is Hispanic students: 60.7% here and 61.2% across Calvin Nelms Charter Schools. Black students are next, at 15.8%. Students from 5 of the 7 race and ethnicity groups NCES reports are enrolled.
It does not take part in the National School Lunch Program.
Source: NCES CCD 2024-25 membership and school lunch program data. District shares weight each school by its enrollment.
Teachers
With 10.42 full-time-equivalent teachers for 183 students, Calvin Nelms High School has 17.6 students per teacher. At the median Texas high school ratio of 14, a school with 183 students would have about 13.1 teachers, so Calvin Nelms High School has 2.7 fewer.
Source: NCES CCD 2024-25. Expected teachers = this school's students ÷ the median students per teacher of Texas high schools (14).
Location
Calvin Nelms High School is in an urbanized area of 250,000 people or more, outside its principal city, which NCES calls suburb, large. The nearest other high school is Morton Ranch High School, 1.9 miles away in Katy ISD. Within 10 miles there are 27 other high schools, 9 of them within 5 miles.
Source: NCES EDGE school locations and locale codes, 2024-25. Distances are straight lines.
Students by race and ethnicity
| Hispanic | 60.7% |
| Black | 15.8% |
| White | 15.8% |
| Asian | 3.8% |
| Two or more races | 3.8% |
48.6% of students are girls and 51.4% are boys.
Source: NCES CCD 2024-25 membership.
Students by grade
| Grade 9 | 49 |
| Grade 10 | 43 |
| Grade 11 | 54 |
| Grade 12 | 37 |
Source: NCES CCD 2024-25 membership.
Location and contact
20625 Clay Rd, Katy, TX 77449
Phone: (281)398-8031
Website: cnchs.net
Locations: NCES EDGE. Map data © OpenStreetMap contributors.
Red: Calvin Nelms High School. Blue: the nearest high schools.
Nearby high schools
| School | District | Distance | Students | Per teacher | Free/reduced lunch |
|---|---|---|---|---|---|
| Morton Ranch High School | Katy ISD | 1.9 mi | 2,944 | 13.9 | 69.6% |
| Cypress Lakes High School | Cypress-Fairbanks ISD | 2.5 mi | 3,175 | 14.9 | 73.4% |
| Paetow High School | Katy ISD | 2.8 mi | 3,447 | 14.8 | 64.7% |
| Mayde Creek High School | Katy ISD | 2.8 mi | 3,036 | 14.2 | 76.5% |
| Taylor High School | Katy ISD | 3.6 mi | 3,384 | 16.2 | 41.7% |
| Cypress Park High School | Cypress-Fairbanks ISD | 3.9 mi | 3,117 | 16 | 71.5% |
| Harmony School of Discovery - Houston | Harmony Public Schools - Houston North | 3.9 mi | 858 | 15.8 | 73.7% |
| Cypress Springs High School | Cypress-Fairbanks ISD | 4.5 mi | 2,800 | 14.8 | 69.4% |
Source: NCES CCD 2024-25. Distance in a straight line between NCES EDGE locations.
Other schools in Calvin Nelms Charter Schools
| School | Level | Grades | Students |
|---|---|---|---|
| Calvin Nelms Middle School | Middle | 6–8 | 160 |