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Excellent

#791 of 8,552 schools in TX

Top 9% in state

Joella Exley EL

Elementary School · Katy ISD · Katy, TX

A Katy ISD elementary school where students score 12 points above what's typical for similar communities.

21800 WESTHEIMER PKWY, Katy, TX 77494

  • Math 62% vs TX 44% (2024)
  • Reading 75% vs TX 54% (2024)
  • 13.3:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress8.2Excellent50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data15
Annual Change-2.82 pts/yr
Data Period2009–2024
TrendDeclining
Academics9.1Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency62% (2024 STAAR)
Reading/ELA Proficiency75% (2024 STAAR)
Math vs. State Avg+18.4 pts
Reading vs. State Avg+20.7 pts
Overall Proficiency69% (2024 STAAR, Math+ELA)
Expected (poverty-adj.)56% (model expectation from 2024 STAAR)
vs. Expected+12.1 pts
Adjusted Percentile86th
Resources & Environment8.5Excellent20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio13.3:1
District spending per student$11,284
Chronic Absenteeism8.7%

Students at Joella Exley EL score 68% proficient, which is above what's typical for similar communities (expected: 56%).

How we calculate scores →

2024 STAAR proficiency

Most recent published year. School vs. TX average.

Math Proficiency62%(2024 STAAR)
School
State
44%(2024 STAAR)
ELA Proficiency75%(2024 STAAR)
School
State
54%(2024 STAAR)

Trend

→ Steady

Proficiency is down 29 points across the 16-year record (2009–2024) and has held near 69% recently.

Show all 15 years
2009
Math
97%
ELA
97%
2010
Math
100%
ELA
98%
2011
Math
98%
ELA
100%
2012
Math
94%
ELA
94%
2013
Math
95%
ELA
95%
2014
Math
95%
ELA
93%
2015
Math
94%
ELA
93%
2016
Math
92%
ELA
92%
2017
Math
71%
ELA
70%
2018
Math
69%
ELA
65%
2019
Math
69%
ELA
65%
2020*
Math
63%
ELA
66%
2021*
Math
63%
ELA
66%
2022
Math
62%
ELA
72%
2024
Math
62%
ELA
75%

Multi-year averages used by the rating model: math 82% (multi-year average, 2009-2024) · reading/ELA 83% (multi-year average, 2009-2024)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 30 test records from TX state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

40.4%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Joella Exley EL sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Houston map →

Getting around & local context

  • Walk 67Somewhat Walkable
  • Transit 0Minimal Transit
  • Bike 49Somewhat Bikeable
  • City Safety: High3,484/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Katy), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$146,105

Median home value

$450,100

Median rent

$2,044/mo

College educated

66.3%

Homeownership

71%

Poverty rate

6%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 77494; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Spanish SchoolhousePrivate · tuitionNot ratedK0.5 mi19Compare →
James E Williams ELEnrollment path unverified8.7PK–51.0 mi911Compare →
Childrens Lighthouse Learning CenterPrivate · tuitionNot ratedK1.2 mi15Compare →
Sue Creech ELEnrollment path unverified8.6PK–51.3 mi817Compare →

Distance is proximity only; it is not attendance eligibility.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Katy ISD

Schools in district
78
Rank in district
#32 of 71
District spending per student
$11,284NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
10.8%Census SAIPE · 2024

Joella Exley EL is listed in KATY ISD; a district label does not verify attendance for an address.

About Joella Exley EL

Joella Exley EL is a public elementary school in Katy, TX, part of Katy ISD, serving approximately 944 students in grades Pre-K-5th with a 13.3:1 student-teacher ratio. It holds a MySchoolScout rating of 8.5 out of 10 and ranks #791 of 8,552 schools in TX. State assessment records show 82% math proficiency (multi-year average, 2009-2024) and 83% reading/ELA proficiency (multi-year average, 2009-2024).

Frequently asked questions

Common questions about Joella Exley EL

What grades does Joella Exley EL serve?

Joella Exley EL serves students in grades Pre-K through 5th.

How many students attend Joella Exley EL?

Joella Exley EL has an enrollment of approximately 944 students.

What is the student-teacher ratio at Joella Exley EL?

The student-teacher ratio at Joella Exley EL is 13.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Joella Exley EL rank in TX?

Joella Exley EL ranks #791 of 8,552 schools in TX.

What is Joella Exley EL's MySchoolScout rating?

Joella Exley EL has a current MySchoolScout rating of 8.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Joella Exley EL?

Based on loaded state assessment records, Joella Exley EL has 82% math proficiency (multi-year average, 2009-2024) and 83% reading/ELA proficiency (multi-year average, 2009-2024).

Is Joella Exley EL a charter school?

No, Joella Exley EL is not a charter school. It is a traditional public school operated by the local school district.

Is Joella Exley EL a Title I school?

No, Joella Exley EL is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Joella Exley EL?

40.4% of students at Joella Exley EL qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Pre-K – 5th
Enrollment
944
Student-Teacher Ratio
13.3:1
Teachers (FTE)
71
Type
regular
Setting
Large Suburb
County
Fort Bend County
Chronic Absenteeism (SY 2022-23)
8.7%
Area population (ZIP 77494)
137,213
Area average commute
34 min
Area median age
38.3
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2024 STAAR · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 STAAR. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2024 STAAR · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 STAAR. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 77494; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24

About our data · How we calculate scores

Related reading

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