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SCHOOL COMMUNITY·PLANO ISD·NCES 483510005571

Clark High School

523 SPRING CREEK PKWY, PLANO, TX 75023 · (469) 752-7200 · Collin County
GRADES 09–10HIGH11-CITYREGULAR SCHOOL1,114 STUDENTS
C
allk12 Grade
Scored higher than 32% of Texas public high schools
  • B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • DBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • BThree-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
1,114
High
DISTRICT 1,262 · STATE 796
Student : Teacher
14.2:1
79 FTE teachers
DISTRICT 14.8:1 · STATE 15.1:1
Free / Reduced Lunch
35%
393 students
DISTRICT 39% · 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 953448%
Grade 1058052%
Student demographics
74%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 76% · STATE 63% · US 70%
White
41037%
DISTRICT 29% · STATE 24% · US 43%
Hispanic
31228%
DISTRICT 30% · STATE 54% · US 30%
Black
17416%
DISTRICT 13% · STATE 13% · US 15%
Asian
16415%
DISTRICT 23% · STATE 6% · US 6%
Two+
484%
DISTRICT 5% · STATE 3% · US 5%
Native American
50%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
10%
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
59453%
Female
52047%

School pathway

Students here typically continue to
Clark High School→Plano Sr High School
Feeds from
Hendrick Middle School06–08Schimelpfenig Middle School06–08
Based on published attendance-zone data from PLANO ISD. Zones change; confirm enrollment with the district.

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
69.0%
TX avg 54.5% . +38.0pp since 2020
Mathematics
32.0%
TX avg 45.3% . +14.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 69 of every 100 students at this school read at grade level and about 32 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 38 points since 2020, while math scores are up about 14 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading18.0%51.0%13.0%18.0%
Mathematics12.0%20.0%39.0%29.0%
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
2025-2669.0%32.0%
2024-2565.0%25.0%
2023-2468.0%24.0%
2022-2340.0%27.0%
2021-2229.0%17.0%
2020-2131.0%18.0%
% 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
53.0%
composite math + reading, all grades
Predicted
58.6%
based on TX schools with similar FRL share
Beats by
-5.6pp
below demographic expectation

What this means: About 53% 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 Clark High School

Clark High School's state test result (53.0% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Clark High School this school1,11435.3%53.0%
Nyos Lamar Secondary
AUSTIN
80930.0%56.8%
Shepton High School
PLANO
1,36037.7%50.3%
McMillen High School
MURPHY
1,01037.7%57.3%
Ischool High at University Park
HOUSTON
43332.8%67.4%
Plano Sr High School
PLANO
2,26726.6%41.2%
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 Clark High School ranks

Among high schools
MeasureThis schoolIn TexasIn Collin County
State test proficiency
ranked highest first
53.0%#714 of 1,385#23 of 31
Math proficiency
ranked highest first
32.0%#1,050 of 1,425
▲ 76
#35 of 38
▲ 1
Reading proficiency
ranked highest first
69.0%#394 of 1,425
▲ 48
#25 of 38
▲ 2
3-year test score change
ranked biggest gain first
+17.0pp#526 of 1,184#23 of 36
Enrollment
ranked largest first
1,114#547 of 2,107#31 of 48
Students per teacher
ranked fewest first
14.2:1#585 of 1,344#6 of 38
Diversity index
ranked most diverse first
73.8%#37 of 1,346#11 of 38
Free and reduced lunch
ranked highest share first
35.3%#1,285 of 1,522#13 of 33
Enrollment change since 2017-18
ranked steepest decline first
-23.3%#83 of 557#2 of 16
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
1,114
-144 (-11%) vs 2020
+12% since 1990-91, when it was 993
Student : Teacher
14.2:1
was 14.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,11478.514.2:135% (393)
2023-241,24181.215.3:137% (465)
2022-231,27981.915.6:139% (496)
2020-211,2588814.3:137% (460)
2017-181,45395.715.2:128% (414)
2015-161,55410015.5:128% (436)
2010-111,3348815.2:127% (357)
2000-011,3829614.4:18% (109)
1990-919937114.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Clark High School.

Since 2017-18: students down 23% (1,453 to 1,114); teachers down 18% (95.7 to 78.5).

About Clark High School

Clark High School is a medium-sized high school in PLANO, Texas, administered by PLANO ISD. Students in grades 9 through 10 attend, and enrollment is 1,114 students. The school's enrollment is 40% above the 796 average for high schools in Texas.

Clark High School falls under PLANO ISD, which has 73 schools enrolling 46,612 students.

The most common group at Clark High School is White students, at 37%. It is also 28% Hispanic, 16% Black, 15% Asian, and 4% multiracial. Collin County's residents are about 54% White, 17 points above the school's share. Pick two students at random and there is a 74% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

Staffing totals 78.5 full-time-equivalent teachers, and the student-to-teacher ratio is 14.2:1. That is lower than the 15.1:1 average for high schools in Texas. A measure often used for student poverty, free or reduced-price lunch eligibility, stands at 35%.

allk12 grades Clark High School a C. The grade compares the school only with Texas public high schools, because each state gives its own test.

BeatsExpectations compares each school's average proficiency rate on state tests with a prediction based on free or reduced-price lunch eligibility. For Clark High School, the prediction is 58.6% and the result is 53.0%.

Collin County has these Census figures: the median household income is $121,600, about 56% of adults have at least a bachelor's degree, and roughly 5% of residents are in poverty. In all, Collin County has 338 public schools and roughly 227,575 students.

Of nearby public schools, Pearson Early Childhood is the closest, at about 0.4 miles. Clark High School has at least 8 other public schools within five miles. Among 8 nearby schools that report test results, Clark High School ranks 2nd on proficiency.

Its NCES locale code is City: Large: the school is inside a principal city with a population of 250,000 or more.

Federal data show an 11% enrollment decrease, from 1,258 in 2020-21 to 1,114 in 2024-25.

To ask about school events, clubs, and volunteer needs, start a discussion on this page. Anyone with firsthand experience at this school can post or comment.

Collin County at a glance

View full county profile
Population
1,163,337
Census ACS
Median income
$121,600
Household, ACS
Bachelor's+
56%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
338
227,575 students

Quick facts

School name
Clark High School
District
PLANO ISD
Address
523 SPRING CREEK PKWY, PLANO, TX 75023
Phone
(469) 752-7200
County
Collin County
Level
High
Grade range
09–10
Total enrollment
1,114
Teachers (FTE)
79
Student–teacher ratio
14.2:1
Free and reduced lunch
393 (35%)
Locale
11-City: Large
NCES ID
483510005571
Charter school
No
Virtual school
No

Related schools

Other schools in PLANO ISD
Other schools in PLANO
Other Clark High schools

2 other US public schools in 2 states are named Clark High. Clark High School is the 2nd largest of the 3.

Nearby schools

Frequently asked questions

About Clark High School
How large is Clark High School?
Clark High School enrolls approximately 1,114 students in grades 09-10.
Is Clark High School an elementary, middle, or high school?
Clark High School is a high school covering grades 09-10.
How many students per teacher at Clark High School?
Approximately 14.2:1 students per teacher at Clark High School.
What is the racial breakdown of students at Clark High School?
At Clark High School, the student body is approximately 37% White, 28% Hispanic, 16% Black, 15% Asian, 4% Two or more.
What district is Clark High School in?
Clark High School is part of PLANO ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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