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SCHOOL COMMUNITY·HOUSTON ISD·NCES 482364002472

Grissom Elementary School

4900 SIMSBROOK DR, HOUSTON, TX 77045 · (713) 434-5660 · Harris County
GRADES PK–05ELEMENTARY11-CITYTITLE IREGULAR SCHOOL424 STUDENTS
C
allk12 Grade
Scored higher than 30% of Texas public elementary schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • AThree-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 elementary schools

Enrollment
424
Elementary
DISTRICT 515 · STATE 519
Student : Teacher
12.8:1
33 FTE teachers
DISTRICT 15.5:1 · STATE 15.1:1
Free / Reduced Lunch
95%
403 students
DISTRICT 84% · STATE 65%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Pre-K5814%
Kindergarten6515%
Grade 15413%
Grade 25313%
Grade 35814%
Grade 47017%
Grade 56616%

This year's kindergarten class (65) is about the same size as its 5th grade class (66).

Student demographics
42%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 56% · STATE 63% · US 70%
White
51%
DISTRICT 10% · STATE 24% · US 43%
Hispanic
30371%
DISTRICT 62% · STATE 54% · US 30%
Black
11026%
DISTRICT 21% · STATE 13% · US 15%
Asian
20%
DISTRICT 5% · STATE 6% · US 6%
Two+
41%
DISTRICT 2% · STATE 3% · US 5%
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
21751%
Female
20749%

School pathway

Students here typically continue to
Grissom Elementary School→Lawson Middle School
Based on published attendance-zone data from HOUSTON ISD. Zones change; confirm enrollment with the district.

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
50.0%
TX avg 54.5% . +33.0pp since 2020
Mathematics
45.0%
TX avg 45.3% . +38.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 50 of every 100 students at this school read at grade level and about 45 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 33 points since 2020, while math scores are up about 38 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading24.0%26.0%26.0%24.0%
Mathematics16.0%29.0%23.0%32.0%
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
2025-2650.0%45.0%
2024-2539.0%32.0%
2023-2431.0%31.0%
2022-2323.0%27.0%
2021-2227.0%26.0%
2020-2117.0%7.0%
% 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
29.7%
composite math + reading, all grades
Predicted
33.1%
based on TX schools with similar FRL share
Beats by
-3.4pp
below demographic expectation

What this means: About 30% of students here test proficient in math and reading, compared with the roughly 33% 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 Grissom Elementary School

Grissom Elementary School's state test result (29.7% proficient) is higher than 1 of the 4 schools below with a result.

SchoolStudentsLow-incomeProficient
Grissom Elementary School this school42495.0%29.7%
Ridgegate Elementary School
HOUSTON
43296.8%32.0%
Harrell Budd Elementary School
DALLAS
45795.8%28.3%
Stovall Ec/PK/K
HOUSTON
45093.8%N/A
Marshall Elementary School
HOUSTON
45397.8%37.3%
Nancy J Cochran Elementary School
DALLAS
45598.0%42.8%
Matched among Texas elementary 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 Grissom Elementary School ranks

Among elementary schools
MeasureThis schoolIn TexasIn Harris County
State test proficiency
ranked highest first
29.7%#3,691 of 4,401#532 of 624
Math proficiency
ranked highest first
45.0%#2,297 of 4,466
▲ 1,270
#317 of 625
▲ 202
Reading proficiency
ranked highest first
50.0%#2,518 of 4,466
▲ 1,070
#341 of 625
▲ 174
3-year test score change
ranked biggest gain first
+22.5pp#378 of 3,998#47 of 603
Enrollment
ranked largest first
424#3,291 of 4,938#529 of 682
Students per teacher
ranked fewest first
12.8:1#727 of 4,622#105 of 657
Diversity index
ranked most diverse first
42.2%#2,943 of 4,628#404 of 657
Free and reduced lunch
ranked highest share first
95.0%#500 of 4,789#135 of 671
Enrollment change since 2017-18
ranked steepest decline first
-23.6%#887 of 2,838#173 of 441
Ranked against other public elementary 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
424
-69 (-14%) vs 2020
-60% since 1990-91, when it was 1,064
Student : Teacher
12.8:1
was 16.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-254243312.8:195% (403)
2023-244703115.2:194% (441)
2022-234672816.7:195% (445)
2020-214933016.4:193% (458)
2017-1855531.617.6:194% (519)
2015-165633217.6:198% (549)
2010-117914617.2:155% (438)
2000-018373523.9:186% (723)
1990-911,0645619.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Grissom Elementary School.

Since 2017-18: students down 24% (555 to 424); teachers up 4% (31.6 to 33).

About Grissom Elementary School

Grissom Elementary School is a low-enrollment elementary school in HOUSTON, Texas. Enrollment totals 424 students across pre-K through 5.

Federal data list 273 schools in HOUSTON ISD, with 176,727 students enrolled.

Of every 100 students at Grissom Elementary School, about 71 are Hispanic. The school is also 26% Black. Harris County's residents are about 44% Hispanic, 27 points below the school's share. The diversity index for Grissom Elementary School is 42%. For US public schools as a whole it is 70%.

Staffing at Grissom Elementary School comes to 33 full-time-equivalent teachers, or 12.8:1. Elementary schools in Texas have an average ratio of 15.1:1. On the income side, 95% of students qualify for free or reduced-price lunch. That rate is above the 70% average among public schools in Harris County.

Grissom Elementary School holds a C allk12 Grade, placing it above 30% of Texas public elementary schools.

Given its share of students eligible for free or reduced-price lunch, Grissom Elementary School would be expected to post about 33.1%. Its actual average proficiency rate across its state test results is 29.7%.

For Harris County, Census Bureau data show the median household earns about $74,983 a year, 34% of adults hold a bachelor's degree or higher, and about 13% of people live in poverty. Counting Grissom Elementary School, Harris County has 1,205 public schools.

Lawson Middle School sits about 0.2 miles from Grissom Elementary School. Inside a five-mile radius, there are at least 8 other public schools. Nearby schools with test data average 39.6% proficiency; Grissom Elementary School posts 29.7%.

Grissom Elementary School has an NCES locale of City: Large.

The school shrank from 493 students in 2020-21 to 424 in 2024-25. The student-to-teacher ratio went down from 16.4:1 to 12.8:1.

Grissom Elementary School has a community page on allk12 for topics such as athletics, class schedules, and weather closures. Teachers and staff are welcome to share updates too.

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
Grissom Elementary School
District
HOUSTON ISD
Address
4900 SIMSBROOK DR, HOUSTON, TX 77045
Phone
(713) 434-5660
County
Harris County
Level
Elementary
Grade range
PK–05
Total enrollment
424
Teachers (FTE)
33
Student–teacher ratio
12.8:1
Free and reduced lunch
403 (95%)
Locale
11-City: Large
NCES ID
482364002472
Charter school
No
Virtual school
No

Related schools

Other schools in HOUSTON ISD
Other schools in HOUSTON
Other Grissom Elementary schools

3 other US public schools in 4 states are named Grissom Elementary. Grissom Elementary School is the largest of the 4.

Nearby schools

Frequently asked questions

About Grissom Elementary School
How many students attend Grissom Elementary School?
Grissom Elementary School enrolls approximately 424 students in grades PK-05.
Is Grissom Elementary School an elementary, middle, or high school?
Grissom Elementary School is an elementary school covering grades PK-05.
How many teachers does Grissom Elementary School have?
Grissom Elementary School employs 33 FTE teachers, for a student-to-teacher ratio of 12.8:1.
What is the student diversity at Grissom Elementary School?
Student demographics at Grissom Elementary School are roughly 1% White, 71% Hispanic, 26% Black, 0% Asian, 1% Two or more.
Is Grissom Elementary School public or private?
Grissom Elementary School is a public K-12 school, overseen by HOUSTON ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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