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SCHOOL COMMUNITY·KLEIN ISD·NCES 482574002906

Theiss Elementary School

17510 THEISS MAIL RD, KLEIN, TX 77379 · (832) 484-5900 · Harris County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL637 STUDENTS
Enrollment
637
Elementary
DISTRICT 684 · STATE 519
Student : Teacher
15.7:1
41 FTE teachers
DISTRICT 14.1:1 · STATE 15.1:1
Free / Reduced Lunch
35%
223 students
DISTRICT 58% · 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-K254%
Kindergarten8814%
Grade 17612%
Grade 28914%
Grade 311418%
Grade 412720%
Grade 511819%

This year's kindergarten class (88) is 25% smaller than its 5th grade class (118).

Student demographics
71%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · STATE 63% · US 70%
White
26542%
DISTRICT 24% · STATE 24% · US 43%
Hispanic
18229%
DISTRICT 47% · STATE 54% · US 30%
Black
11117%
DISTRICT 18% · STATE 13% · US 15%
Asian
376%
DISTRICT 7% · STATE 6% · US 6%
Two+
406%
DISTRICT 4% · STATE 3% · US 5%
Pacific Islander
20%
DISTRICT 0% · STATE 0% · US 0%
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
29346%
Female
34454%

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
66.0%
TX avg 54.5% . +33.0pp since 2020
Mathematics
58.0%
TX avg 45.3% . +20.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 66 of every 100 students at this school read at grade level and about 58 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 20 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading36.0%30.0%19.0%15.0%
Mathematics30.0%28.0%22.0%20.0%
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
2025-2666.0%58.0%
2024-2569.0%59.0%
2023-2466.0%55.0%
2022-2352.0%52.0%
2021-2261.0%45.0%
2020-2133.0%38.0%
% 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
55.2%
composite math + reading, all grades
Predicted
58.7%
based on TX schools with similar FRL share
Beats by
-3.5pp
below demographic expectation

What this means: About 55% of students here test proficient in math and reading, compared with the roughly 59% 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 Theiss Elementary School

Theiss Elementary School's state test result (55.2% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Theiss Elementary School this school63735.0%55.2%
Meadow Creek Elementary School
BEDFORD
64934.2%67.9%
J C Thompson Elementary School
HASLET
72635.5%40.0%
Lake Country Elementary School
FORT WORTH
65533.4%44.4%
Sonny & Allegra Nance Elementary School
FORT WORTH
53335.1%48.9%
Simpson Elementary School
WAXAHACHIE
59235.0%48.0%
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 Theiss Elementary School ranks

Among elementary schools
MeasureThis schoolIn TexasIn Harris County
State test proficiency
ranked highest first
55.2%#1,044 of 4,401#111 of 624
Math proficiency
ranked highest first
58.0%#1,073 of 4,466
▼ 137
#128 of 625
▼ 19
Reading proficiency
ranked highest first
66.0%#955 of 4,466
▼ 159
#111 of 625
▼ 35
3-year test score change
ranked biggest gain first
+10.0pp#1,481 of 3,998#236 of 603
Enrollment
ranked largest first
637#1,348 of 4,938#307 of 682
Students per teacher
ranked fewest first
15.7:1#3,054 of 4,622#405 of 657
Diversity index
ranked most diverse first
70.8%#453 of 4,628#59 of 657
Free and reduced lunch
ranked highest share first
35.0%#4,095 of 4,789#612 of 671
Enrollment change since 2017-18
ranked steepest decline first
-3.6%#2,567 of 2,838#406 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
637
-21 (-3%) vs 2020
-30% since 1990-91, when it was 912
Student : Teacher
15.7:1
was 15.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2563740.615.7:135% (223)
2023-2473046.915.6:137% (273)
2022-2377250.415.3:136% (280)
2020-216584215.7:133% (216)
2017-1866139.516.8:118% (122)
2015-166484016.2:117% (108)
2010-116704614.6:119% (127)
2000-015833616.2:11% (8)
1990-919124520.3:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Theiss Elementary School.

Since 2017-18: students down 4% (661 to 637); teachers up 3% (39.5 to 40.6).

About Theiss Elementary School

Theiss Elementary School is a medium-sized elementary school in KLEIN, Texas, (ZIP code 77379). Enrolled students number 637 students, in pre-K through 5. Enrollment is 23% higher than the average for elementary schools in Texas, which is about 519.

KLEIN ISD enrolls 52,437 students in 50 schools, including Theiss Elementary School.

Theiss Elementary School has no majority group; White students are the largest, at 42%. Smaller groups are 29% Hispanic, 17% Black, 6% multiracial, and 6% Asian. Theiss Elementary School's diversity index is 71%, against a US figure of 70%.

Teachers at the school number 40.6 full-time equivalents, and the ratio is 15.7:1. That matches the 15.1:1 average for elementary schools in Texas fairly closely. The school's lunch program data list 35% of students as eligible for free or reduced-price meals. By comparison, the figure for public schools in Harris County is 70%.

BeatsExpectations compares each school's average proficiency rate on state tests with a prediction based on free or reduced-price lunch eligibility. For Theiss Elementary School, the prediction is 58.7% and the result is 55.2%.

Across Harris County, the median household income is $74,983, roughly 34% of adults have a four-year degree or more, and about 13% of residents live below the federal poverty line. Harris County is home to 1,205 public schools and about 886,911 public school students.

Of nearby public schools, Doerre Intermediate School is the closest, at about 0.7 miles. In all, at least 8 other public schools sit within five miles of Theiss Elementary School. Its average proficiency rate of 55.2% is below the 57.5% average for nearby schools.

Its NCES locale code is Suburb: Large: the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Theiss Elementary School's enrollment dropped from 658 in 2020-21 to 637 in 2024-25.

Conversations here can range across enrollment questions, class placement, and PTA news. Reviews and ratings from people who know the school are welcome.

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
Theiss Elementary School
District
KLEIN ISD
Address
17510 THEISS MAIL RD, KLEIN, TX 77379
Phone
(832) 484-5900
County
Harris County
Level
Elementary
Grade range
PK–05
Total enrollment
637
Teachers (FTE)
41
Student–teacher ratio
15.7:1
Free and reduced lunch
223 (35%)
Locale
21-Suburb: Large
NCES ID
482574002906
Charter school
No
Virtual school
No

Related schools

Other schools in KLEIN ISD
Other schools in KLEIN
Nearby schools

Frequently asked questions

About Theiss Elementary School
How many students attend Theiss Elementary School?
Theiss Elementary School enrolls approximately 637 students in grades PK-05.
Is Theiss Elementary School an elementary, middle, or high school?
Theiss Elementary School is an elementary school covering grades PK-05.
How many students per teacher at Theiss Elementary School?
Approximately 15.7:1 students per teacher at Theiss Elementary School.
What is the student diversity at Theiss Elementary School?
Student demographics at Theiss Elementary School are roughly 42% White, 29% Hispanic, 17% Black, 6% Asian, 6% Two or more.
Is Theiss Elementary School public or private?
Theiss Elementary School is a public K-12 school, overseen by KLEIN ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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