Top Rankings
Calvin Nelms Charter Schools ranks among the top 20% of public school district in Texas for:
Category
Attribute
Overall Rank
Highest overall rank (Top 5%)
Math Proficiency
Highest math proficiency (Top 5%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 1%)
For the 2025-26 school year, there is 1 public high school serving 168 students in Calvin Nelms Charter Schools. This district's average high testing ranking is 10/10, which is in the top 5% of public high schools in Texas.
Public High School in Calvin Nelms Charter School have an average math proficiency score of 75% (versus the Texas public high school average of 38%), and reading proficiency score of 75% (versus the 47% statewide average).
Public High School in Calvin Nelms Charter School have a Graduation Rate of 90%, which is equal to the Texas average of 90%.
The school with highest graduation rate is Calvin Nelms High School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Texas or national school graduation rate statistics.
Minority enrollment is 82% of the student body (majority Hispanic), which is more than the Texas public high school average of 74% (majority Hispanic).
Overview
This School District
This State (TX)
# Schools
2 Schools
2,546 Schools
# Students
324 Students
1,864,528 Students
# Teachers
18 Teachers
125,497 Teachers
Student-Teacher Ratio
18:1
18:1
Student By Grade
District Rank
Calvin Nelms Charter Schools, which is ranked #35 of all 1,196 school districts in Texas (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 90% has stayed relatively flat over five school years.
Overall District Rank
#39 out of 1202 school districts
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
73%
44%
Reading/Language Arts Test Scores (% Proficient)
70-74%
51%
Science Test Scores (% Proficient)
75-79%
46%
Graduation Rate
(21-22)≥90%
90%
Students by Ethnicity:
Diversity Score
0.58
0.64
% American Indian
n/a
n/a
% Asian
5%
5%
% Hispanic
61%
53%
% Black
17%
13%
% White
14%
26%
% Hawaiian
n/a
n/a
% Two or more races
3%
3%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $11,395 in this school district is less than the state median of $13,387. The school district revenue/student has declined by 7% over four school years.
The school district's spending/student of $7,756 is less than the state median of $14,117. The school district spending/student has declined by 7% over four school years.
Total Revenue
$4 MM
$74,029 MM
Spending
$3 MM
$78,063 MM
Revenue / Student
$11,395
$13,387
Spending / Student
$7,756
$14,117
Best Calvin Nelms Charter Schools Public High Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Calvin Nelms High School
Charter School
(Math: 70-79% | Reading: 70-79%)
Rank:
Rank:
10/
Top 10%10
20625 Clay Rd
Katy, TX 77449
(281) 398-8031
Katy, TX 77449
(281) 398-8031
Gr: 9-12 | 168 students Student-teacher ratio: 17:1 Minority enrollment: 82%
Recent Articles

10 Major Challenges Facing Public Schools in 2025
Explore the 10 biggest challenges facing U.S. public schools in 2025, from funding shortages to mental health and technology gaps.

Broward County School Bus Service Update 2025
A 2025 review of Broward County public school bus service: challenges, innovations, and what parents should know.

Failures of U.S. Public Education in 2025
Explore the 15 biggest failures of the American public education system in 2025, with updated data, expert insights, and real-world examples.