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SCHOOL COMMUNITY·LEANDER ISD·NCES 482703009105

Charlotte Cox Elementary School

1001 BRUSHY CREEK RD, CEDAR PARK, TX 78613 · (512) 570-6000 · Williamson County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL534 STUDENTS
B-
allk12 Grade
Scored higher than 47% of Texas public elementary schools
  • A-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.
  • C-Three-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
534
Elementary
DISTRICT 629 · STATE 519
Student : Teacher
11.7:1
46 FTE teachers
DISTRICT 12.5:1 · STATE 15.1:1
Free / Reduced Lunch
17%
90 students
DISTRICT 19% · 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-K5610%
Kindergarten7314%
Grade 16713%
Grade 27815%
Grade 38215%
Grade 47514%
Grade 510319%

This year's kindergarten class (73) is 29% smaller than its 5th grade class (103).

Student demographics
71%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 70% · STATE 63% · US 70%
White
22743%
DISTRICT 44% · STATE 24% · US 43%
Hispanic
11522%
DISTRICT 26% · STATE 54% · US 30%
Black
163%
DISTRICT 5% · STATE 13% · US 15%
Asian
12123%
DISTRICT 18% · STATE 6% · US 6%
Two+
5210%
DISTRICT 7% · STATE 3% · US 5%
Native American
20%
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
26449%
Female
27051%

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
68.0%
TX avg 54.5% . +43.0pp since 2020
Mathematics
45.0%
TX avg 45.3% . +12.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 68 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 43 points since 2020, while math scores are up about 12 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading40.0%28.0%22.0%10.0%
Mathematics20.0%25.0%26.0%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
2025-2668.0%45.0%
2024-2572.0%53.0%
2023-2470.0%55.0%
2022-2359.0%59.0%
2021-2278.0%61.0%
2020-2125.0%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
56.5%
composite math + reading, all grades
Predicted
66.5%
based on TX schools with similar FRL share
Beats by
-10.0pp
below demographic expectation

What this means: About 56% of students here test proficient in math and reading, compared with the roughly 66% 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 Charlotte Cox Elementary School

Charlotte Cox Elementary School's state test result (56.5% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Charlotte Cox Elementary School this school53416.9%56.5%
Chandler Oaks Elementary School
ROUND ROCK
57415.7%76.4%
Forest Vista Elementary School
FLOWER MOUND
55718.7%76.5%
Flower Mound Elementary School
FLOWER MOUND
52617.7%69.7%
Purple Sage Elementary School
AUSTIN
50223.5%65.2%
C C Mason Elementary School
CEDAR PARK
69116.1%48.9%
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 Charlotte Cox Elementary School ranks

Among elementary schools
MeasureThis schoolIn TexasIn Williamson County
State test proficiency
ranked highest first
56.5%#969 of 4,401#29 of 86
Math proficiency
ranked highest first
45.0%#2,318 of 4,466
▼ 934
#49 of 87
▼ 14
Reading proficiency
ranked highest first
68.0%#839 of 4,466
▼ 196
#33 of 87
▼ 9
3-year test score change
ranked biggest drop first
-2.5pp#910 of 3,998#12 of 78
Enrollment
ranked largest first
534#2,188 of 4,938#60 of 90
Students per teacher
ranked fewest first
11.7:1#259 of 4,622#16 of 88
Diversity index
ranked most diverse first
71.1%#413 of 4,628#14 of 88
Free and reduced lunch
ranked highest share first
16.9%#4,511 of 4,789#62 of 87
Enrollment change since 2017-18
ranked steepest decline first
-7.0%#2,311 of 2,838#35 of 43
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
534
-38 (-7%) vs 2020
-24% since 2010-11, when it was 707
Student : Teacher
11.7:1
was 13.0:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2553445.711.7:117% (90)
2023-2464349.313.1:119% (119)
2022-2365946.314.2:119% (126)
2020-215724413.0:117% (95)
2017-1857440.214.3:114% (78)
2015-166844515.2:116% (110)
2010-117074914.4:116% (115)
Source: NCES Common Core of Data. Rows are the federal collections on file for Charlotte Cox Elementary School.

Since 2017-18: students down 7% (574 to 534); teachers up 14% (40.2 to 45.7).

About Charlotte Cox Elementary School

Charlotte Cox Elementary School is an elementary school in CEDAR PARK, Texas, reachable at (512) 570-6000. The school counts 534 students across pre-K through 5.

LEANDER ISD is made up of 51 schools with 42,680 students in all.

By race and ethnicity, the largest group at Charlotte Cox Elementary School is White (43%). Other groups make up 23% Asian, 22% Hispanic, 10% multiracial, and 3% Black. Williamson County as a whole is about 60% White, so the school's share is lower. Charlotte Cox Elementary School has a diversity index of 71%, compared with 70% for all US public school students.

Its 45.7 full-time-equivalent teachers give the school a ratio of 11.7:1. That ratio is under the 15.1:1 average for elementary schools in Texas. Free or reduced-price lunch eligibility is 17%. Public schools in Williamson County average 29%.

Charlotte Cox Elementary School is graded B- by allk12, scoring above 47% of Texas public elementary schools once test results, poverty-adjusted performance, and the recent trend are combined.

When test results are adjusted for free or reduced-price lunch eligibility, Charlotte Cox Elementary School is 10.0 points below its prediction. Actual: 56.5%. Predicted: 66.5%.

Williamson County has about 672,688 residents, and median household income is about $111,340, 48% of adults hold a bachelor's degree or higher, and about 4% of people live in poverty. The public schools of Williamson County number 208 and enroll about 126,147.

Rutledge Elementary School is the closest public school, about 0.8 miles away in a straight line. There are at least 8 more public schools inside five miles. Charlotte Cox Elementary School places 6th of 9 on proficiency among the closest schools that report scores.

The National Center for Education Statistics classifies the school's location as Suburb: Large, meaning it is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Charlotte Cox Elementary School had 572 students in 2020-21 and 534 in 2024-25, a 7% decrease. The student-to-teacher ratio fell from 13.0:1 in 2020-21 to 11.7:1 in 2024-25.

The Charlotte Cox Elementary School community page is open for posts about school events, clubs, and volunteer needs. Posting is open to anyone connected to the school.

Williamson County at a glance

View full county profile
Population
672,688
Census ACS
Median income
$111,340
Household, ACS
Bachelor's+
48%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
208
126,147 students

Quick facts

School name
Charlotte Cox Elementary School
District
LEANDER ISD
Address
1001 BRUSHY CREEK RD, CEDAR PARK, TX 78613
Phone
(512) 570-6000
County
Williamson County
Level
Elementary
Grade range
PK–05
Total enrollment
534
Teachers (FTE)
46
Student–teacher ratio
11.7:1
Free and reduced lunch
90 (17%)
Locale
21-Suburb: Large
NCES ID
482703009105
Charter school
No
Virtual school
No

Related schools

Other schools in LEANDER ISD
Other schools in CEDAR PARK
Nearby schools

Frequently asked questions

About Charlotte Cox Elementary School
How many students attend Charlotte Cox Elementary School?
Charlotte Cox Elementary School enrolls approximately 534 students in grades PK-05.
What grades does Charlotte Cox Elementary School serve?
Charlotte Cox Elementary School serves grades PK-05.
What is the student-teacher ratio at Charlotte Cox Elementary School?
The student-to-teacher ratio at Charlotte Cox Elementary School is approximately 11.7:1 (46 FTE teachers).
What is the student diversity at Charlotte Cox Elementary School?
Student demographics at Charlotte Cox Elementary School are roughly 43% White, 22% Hispanic, 3% Black, 23% Asian, 10% Two or more.
Who oversees Charlotte Cox Elementary School?
Charlotte Cox Elementary School is overseen by LEANDER ISD in Williamson County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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