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SCHOOL COMMUNITY·KATY ISD·NCES 482517011272

Cardiff Junior High School

3900 DAYFLORWER DR, KATY, TX 77449 · (281) 234-0600 · Harris County
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL803 STUDENTS
B
allk12 Grade
Scored higher than 64% of Texas public middle schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • A-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • CThree-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 middle schools

Enrollment
803
Middle
DISTRICT 1,173 · STATE 643
Student : Teacher
11.3:1
71 FTE teachers
DISTRICT 14.5:1 · STATE 14.4:1
Free / Reduced Lunch
82%
662 students
DISTRICT 46% · STATE 65%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 624931%
Grade 728235%
Grade 827234%
Student demographics
48%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 75% · STATE 63% · US 70%
White
8511%
DISTRICT 25% · STATE 24% · US 43%
Hispanic
55970%
DISTRICT 36% · STATE 54% · US 30%
Black
11915%
DISTRICT 15% · STATE 13% · US 15%
Asian
182%
DISTRICT 18% · STATE 6% · US 6%
Two+
202%
DISTRICT 5% · STATE 3% · US 5%
Native American
20%
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
39249%
Female
41151%

School pathway

Students here typically continue to
Cardiff Junior High School→Mayde Creek High School
Feeds from
Bear Creek Elementary SchoolPK–05Jack & Sharon Rhoads Elementary SchoolPK–05
Based on published attendance-zone data from KATY ISD. Zones change; confirm enrollment with the district.

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
54.0%
TX avg 54.5% . +19.0pp since 2020
Mathematics
48.0%
TX avg 45.3% . +15.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 54 of every 100 students at this school read at grade level and about 48 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 19 points since 2020, while math scores are up about 15 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading26.0%28.0%23.0%23.0%
Mathematics15.0%33.0%28.0%24.0%
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
2025-2654.0%48.0%
2024-2553.0%40.0%
2023-2450.0%41.0%
2022-2347.0%43.0%
2021-2244.0%33.0%
2020-2135.0%33.0%
% 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
44.7%
composite math + reading, all grades
Predicted
38.5%
based on TX schools with similar FRL share
Beats by
+6.2pp
above demographic expectation

What this means: About 45% of students here test proficient in math and reading, compared with the roughly 38% 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 Cardiff Junior High School

Cardiff Junior High School's state test result (44.7% proficient) is higher than 5 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Cardiff Junior High School this school80382.4%44.7%
Baytown Junior High School
BAYTOWN
71181.0%34.6%
Vanston Middle School
MESQUITE
72884.5%36.4%
McDonald Middle School
MESQUITE
78782.2%34.3%
P E Wallace Middle School
MOUNT PLEASANT
69882.2%44.6%
Lanny Frasier Middle School
MESQUITE
95984.7%40.6%
Matched among Texas middle 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 Cardiff Junior High School ranks

Among middle schools
MeasureThis schoolIn TexasIn Harris County
State test proficiency
ranked highest first
44.7%#712 of 1,635#80 of 218
Math proficiency
ranked highest first
48.0%#613 of 1,670
▲ 258
#75 of 219
▲ 33
Reading proficiency
ranked highest first
54.0%#853 of 1,670
▼ 22
#103 of 219
▼ 11
3-year test score change
ranked biggest gain first
+6.0pp#1,033 of 1,570#148 of 216
Enrollment
ranked largest first
803#558 of 1,749#115 of 227
Students per teacher
ranked fewest first
11.3:1#90 of 1,542#12 of 215
Diversity index
ranked most diverse first
48.1%#952 of 1,543#126 of 215
Free and reduced lunch
ranked highest share first
82.4%#451 of 1,648#118 of 221
Enrollment change since 2017-18
ranked steepest decline first
-9.4%#647 of 942#107 of 145
Ranked against other public middle 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
803
-121 (-13%) vs 2020
-25% since 2010-11, when it was 1,074
Student : Teacher
11.3:1
was 11.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2580371.111.3:182% (662)
2023-2481871.611.4:186% (700)
2022-2386374.511.6:184% (729)
2020-219247811.8:170% (643)
2017-1888677.711.4:170% (621)
2015-169677912.2:167% (650)
2010-111,0746815.8:162% (662)
Source: NCES Common Core of Data. Rows are the federal collections on file for Cardiff Junior High School.

Since 2017-18: students down 9% (886 to 803); teachers down 8% (77.7 to 71.1).

About Cardiff Junior High School

Cardiff Junior High School is listed by the National Center for Education Statistics as a middle school in KATY, Texas. The school teaches grades 6 through 8 and enrolls 803 students. It has 25% more students than the average for middle schools in Texas (about 643).

KATY ISD enrolls 96,111 students in 78 schools, including Cardiff Junior High School.

More than half of the students at Cardiff Junior High School are Hispanic (70%). The remaining shares are 15% Black, 11% White, 2% multiracial, and 2% Asian. Census estimates put the Hispanic share of Harris County's population at about 44%. The diversity index for Cardiff Junior High School is 48%. For US public schools as a whole it is 70%.

Based on 71.1 full-time-equivalent teachers, Cardiff Junior High School has a ratio of 11.3:1. The average for middle schools in Texas, 14.4:1, is higher. Income data for the school show 82% of students eligible for free or reduced-price lunch. It compares with 70% for public schools in Harris County.

Cardiff Junior High School earns a B on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 64% of Texas public middle schools.

Based on student poverty, the model expects 38.5% at Cardiff Junior High School; the school's average proficiency rate across its state test results is 44.7%.

For the population of Harris County, the median household earns about $74,983 a year, a bachelor's degree or higher is held by about 34% of adults, and the poverty rate is about 13%. Across Harris County, 1,205 public schools serve about 886,911 students.

A public school about 0.6 miles away, Jack & Sharon Rhoads Elementary School, is the closest to Cardiff Junior High School. Inside a five-mile radius, there are at least 8 other public schools. Nearby schools with test data average 42.3% proficiency; Cardiff Junior High School posts 44.7%.

For locale, NCES codes Cardiff Junior High School as Suburb: Large.

The school's student count fell 13% between the 2020-21 and 2024-25 school years.

Use the discussion section to ask about homework, tutoring, and testing dates at Cardiff Junior High School. You can also rate the school on this page.

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
Cardiff Junior High School
District
KATY ISD
Address
3900 DAYFLORWER DR, KATY, TX 77449
Phone
(281) 234-0600
County
Harris County
Level
Middle
Grade range
06–08
Total enrollment
803
Teachers (FTE)
71
Student–teacher ratio
11.3:1
Free and reduced lunch
662 (82%)
Locale
21-Suburb: Large
NCES ID
482517011272
Charter school
No
Virtual school
No

Related schools

Other schools in KATY ISD
Other schools in KATY
Nearby schools

Frequently asked questions

About Cardiff Junior High School
What is the total enrollment at Cardiff Junior High School?
Cardiff Junior High School enrolls approximately 803 students in grades 06-08.
What grades does Cardiff Junior High School serve?
Cardiff Junior High School serves grades 06-08.
How many teachers does Cardiff Junior High School have?
Cardiff Junior High School employs 71 FTE teachers, for a student-to-teacher ratio of 11.3:1.
How diverse is Cardiff Junior High School?
Cardiff Junior High School reports a student body of 11% White, 70% Hispanic, 15% Black, 2% Asian, 2% Two or more.
Is Cardiff Junior High School public or private?
Cardiff Junior High School is a public K-12 school, overseen by KATY ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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