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SCHOOL COMMUNITY·INTERNATIONAL LEADERSHIP OF TEXAS (ILTEXAS)·NCES 480144013813

Iltexas Houston Windmill Lakes Orem High School

9901 WINDMILL LAKES BLVD, HOUSTON, TX 77075 · (832) 649-6817 · Harris County
GRADES 09–12HIGH11-CITYCHARTERTITLE IREGULAR SCHOOL837 STUDENTS
C+
allk12 Grade
Scored higher than 41% of Texas public high schools
  • CTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • B+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • DThree-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Texas public high schools

Enrollment
837
High
DISTRICT 580 · STATE 796
Student : Teacher
15.3:1
55 FTE teachers
DISTRICT 12.9:1 · STATE 15.1:1
Free / Reduced Lunch
87%
729 students
DISTRICT 73% · STATE 65%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 922327%
Grade 1024529%
Grade 1119924%
Grade 1217020%
Student demographics
39%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 58% · STATE 63% · US 70%
White
111%
DISTRICT 7% · STATE 24% · US 43%
Hispanic
62675%
DISTRICT 59% · STATE 54% · US 30%
Black
17821%
DISTRICT 25% · STATE 13% · US 15%
Asian
30%
DISTRICT 5% · STATE 6% · US 6%
Two+
152%
DISTRICT 3% · STATE 3% · US 5%
Native American
40%
DISTRICT 0% · STATE 0% · US 1%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
40849%
Female
42951%

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
49.0%
TX avg 54.5% . +27.0pp since 2020
Mathematics
21.0%
TX avg 45.3% . +19.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 49 of every 100 students at this school read at grade level and about 21 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 27 points since 2020, while math scores are up about 19 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading3.0%46.0%27.0%24.0%
Mathematics4.0%17.0%61.0%18.0%
Share of tested students at each STAAR level. Each student counts in one level, so a row adds to about 100%.

STAAR results by year

School yearReadingMathematics
2025-2649.0%21.0%
2024-2540.0%23.0%
2023-2450.0%42.0%
2022-2336.0%34.0%
2021-2231.0%21.0%
2020-2122.0%2.0%
% Meets Grade Level or Above, all students and all tested grades.
Source: STAAR. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
47.9%
composite math + reading, all grades
Predicted
36.5%
based on TX schools with similar FRL share
Beats by
+11.4pp
above demographic expectation

What this means: About 48% of students here test proficient in math and reading, compared with the roughly 37% typical for Texas schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Texas's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Iltexas Houston Windmill Lakes Orem High School

Iltexas Houston Windmill Lakes Orem High School's state test result (47.9% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Iltexas Houston Windmill Lakes Orem High School this school83787.1%47.9%
Eastside Early College High School
AUSTIN
66389.1%25.2%
KIPP Houston High School
HOUSTON
64289.9%61.7%
Justin F Kimball High School
DALLAS
1,17589.5%29.5%
YES Prep - Hobby
HOUSTON
68586.4%39.4%
IDEA Achieve College Preparatory
HALTOM CITY
46686.9%51.2%
Matched among Texas high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Iltexas Houston Windmill Lakes Orem High School ranks

Among high schools
MeasureThis schoolIn TexasIn Harris County
State test proficiency
ranked highest first
47.9%#895 of 1,385#92 of 150
Math proficiency
ranked highest first
21.0%#1,287 of 1,425
▼ 122
#152 of 155
▼ 11
Reading proficiency
ranked highest first
49.0%#991 of 1,425
▲ 147
#104 of 155
▲ 8
3-year test score change
ranked biggest gain first
+0.0pp#1,065 of 1,184#144 of 151
Enrollment
ranked largest first
837#661 of 2,107#102 of 223
Students per teacher
ranked fewest first
15.3:1#788 of 1,344#50 of 157
Diversity index
ranked most diverse first
39.5%#907 of 1,346#103 of 157
Free and reduced lunch
ranked highest share first
87.1%#250 of 1,522#59 of 175
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
837
+502 (+150%) vs 2020
Student : Teacher
15.3:1
was 19.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2583754.615.3:187% (729)
2023-2472748.914.9:190% (655)
2022-2360245.313.3:186% (516)
2020-213351719.7:187% (292)
Source: NCES Common Core of Data. Rows are the federal collections on file for Iltexas Houston Windmill Lakes Orem High School.

About Iltexas Houston Windmill Lakes Orem High School

Among the schools in HOUSTON, Texas, is Iltexas Houston Windmill Lakes Orem High School, a mid-sized high school. There are 837 students enrolled, covering grades 9 through 12.

The 44 schools in INTERNATIONAL LEADERSHIP OF TEXAS (ILTEXAS) enroll 25,497 students altogether, Iltexas Houston Windmill Lakes Orem High School among them.

Federal enrollment data show Iltexas Houston Windmill Lakes Orem High School is 75% Hispanic. Other groups include 21% Black. The county population is about 44% Hispanic. On a 0 to 100 scale, the school's diversity index is 39, compared with 70 nationally.

Teacher count: 54.6 full-time equivalents. Student-to-teacher ratio: 15.3:1. It is about the same as the 15.1:1 average for high schools in Texas. Roughly 87% of students come from households that qualify for free or reduced-price lunch. Compared with the 70% average for public schools in Harris County, the school's rate is higher.

Iltexas Houston Windmill Lakes Orem High School holds a C+ allk12 Grade, placing it above 41% of Texas public high schools.

When test results are adjusted for free or reduced-price lunch eligibility, Iltexas Houston Windmill Lakes Orem High School is 11.4 points above its prediction. Actual: 47.9%. Predicted: 36.5%.

The school is in Harris County, where the median household earns about $74,983 a year, a bachelor's degree or higher is held by about 34% of adults, and the share of residents below the poverty line is 13%. Iltexas Houston Windmill Lakes Orem High School shares Harris County with 1,204 other public schools.

Iltexas Houston Windmill Lakes Orem High School is about 0.1 miles from Iltexas Houston Windmill Lakes Elementary School, its nearest public school. Iltexas Houston Windmill Lakes Orem High School has at least 8 other public schools within five miles. Local comparison: Iltexas Houston Windmill Lakes Orem High School ranks 2nd of 9 nearby schools, at 47.9% versus a 35.7% average.

Its NCES locale code is City: Large: the school is inside a principal city with a population of 250,000 or more. This is a charter school, which is a tuition-free public school operating under a charter.

In 2020-21, federal data counted 335 students at Iltexas Houston Windmill Lakes Orem High School; in 2024-25, 837. The grades served may not have been the same in both years. There were fewer students per teacher in 2024-25 (15.3:1) than in 2020-21 (19.7:1).

This page is set up for the Iltexas Houston Windmill Lakes Orem High School community to discuss open houses, carpools, and field trips. Members of the school community can share what they know.

Harris County at a glance

View full county profile
Population
4,838,303
Census ACS
Median income
$74,983
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
13%
Below federal line
Schools in county
1,205
886,911 students

Quick facts

School name
Iltexas Houston Windmill Lakes Orem High School
District
INTERNATIONAL LEADERSHIP OF TEXAS (ILTEXAS)
Address
9901 WINDMILL LAKES BLVD, HOUSTON, TX 77075
Phone
(832) 649-6817
County
Harris County
Level
High
Grade range
09–12
Total enrollment
837
Teachers (FTE)
55
Student–teacher ratio
15.3:1
Free and reduced lunch
729 (87%)
Locale
11-City: Large
NCES ID
480144013813
Charter school
Yes
Virtual school
No

Related schools

Other schools in INTERNATIONAL LEADERSHIP OF TEXAS (ILTEXAS)
Other schools in HOUSTON
Nearby schools

Frequently asked questions

About Iltexas Houston Windmill Lakes Orem High School
What is the total enrollment at Iltexas Houston Windmill Lakes Orem High School?
Iltexas Houston Windmill Lakes Orem High School enrolls approximately 837 students in grades 09-12.
What grades does Iltexas Houston Windmill Lakes Orem High School serve?
Iltexas Houston Windmill Lakes Orem High School serves grades 09-12.
How many teachers does Iltexas Houston Windmill Lakes Orem High School have?
Iltexas Houston Windmill Lakes Orem High School employs 55 FTE teachers, for a student-to-teacher ratio of 15.3:1.
How diverse is Iltexas Houston Windmill Lakes Orem High School?
Iltexas Houston Windmill Lakes Orem High School reports a student body of 1% White, 75% Hispanic, 21% Black, 0% Asian, 2% Two or more.
Is Iltexas Houston Windmill Lakes Orem High School public or private?
Iltexas Houston Windmill Lakes Orem High School is a public K-12 school operated as a charter, overseen by INTERNATIONAL LEADERSHIP OF TEXAS (ILTEXAS).
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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