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SCHOOL COMMUNITY·JOHNSTON COMM SCHOOL DISTRICT·NCES 191545001412

Timber Ridge Elementary

7370 NW 54th AVE, Johnston, IA 50131 · (515) 331-4379 · Polk County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL667 STUDENTS
Enrollment
667
Elementary
DISTRICT 648 · STATE 325
Student : Teacher
14.1:1
47 FTE teachers
DISTRICT 14.2:1 · STATE 13.7:1
Free / Reduced Lunch
27%
182 students
DISTRICT 26% · STATE 41%
Community
5
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
Kindergarten10816%
Grade 111016%
Grade 210616%
Grade 312118%
Grade 411818%
Grade 510416%

This year's kindergarten class (108) is about the same size as its 5th grade class (104).

Student demographics
60%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 56% · STATE 48% · US 70%
White
40060%
DISTRICT 64% · STATE 70% · US 43%
Hispanic
609%
DISTRICT 8% · STATE 14% · US 30%
Black
6910%
DISTRICT 12% · STATE 7% · US 15%
Asian
9514%
DISTRICT 10% · STATE 2% · US 6%
Two+
436%
DISTRICT 5% · STATE 5% · US 5%
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
35052%
Female
31748%

School pathway

Students here typically continue to
Timber Ridge Elementary→Summit Middle School→Johnston Middle School→Johnston Senior High School
Based on grade levels within Johnston Comm School District. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

ISASP 2024-25 . % Proficient
English Language Arts
75.5%
IA avg 73.6% . +5.9pp since 2023
Math
77.1%
IA avg 70.9% . -0.2pp since 2023

What this means: On the ISASP, Iowa's statewide test, about 76 of every 100 students at this school read and write at grade level and about 77 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are up about 6 points since 2023, while math scores have held steady.

ISASP results by year

School yearEnglish Language ArtsMath
2024-2575.5%77.1%
2023-2469.6%77.3%
% Proficient, all students and all tested grades.
Source: ISASP. 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
73.9%
composite math + reading, all grades
Predicted
78.3%
based on IA schools with similar FRL share
Beats by
-4.4pp
below demographic expectation

What this means: About 74% of students here test proficient in math and reading, compared with the roughly 78% typical for Iowa 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 Iowa'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 Timber Ridge Elementary

Timber Ridge Elementary's state test result (73.9% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Timber Ridge Elementary this school66727.3%73.9%
Lawson Elementary School
Johnston
54533.2%78.1%
Brookview Elementary School
West Des Moines
59222.0%82.0%
Woodland Hills Elementary School
West Des Moines
57821.6%83.3%
Riverdale Heights Elem School
Bettendorf
62819.9%87.7%
Fellows Elementary School
Ames
48928.8%83.5%
Matched among Iowa 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 Timber Ridge Elementary ranks

Among elementary schools
MeasureThis schoolIn IowaIn Polk County
State test proficiency
ranked highest first
73.9%#261 of 564#29 of 78
Math proficiency
ranked highest first
77.1%#276 of 564
▼ 17
#31 of 78
▼ 4
Reading proficiency
ranked highest first
75.5%#232 of 564
▲ 67
#31 of 78
▲ 5
Enrollment
ranked largest first
667#16 of 705#4 of 89
Students per teacher
ranked fewest first
14.1:1#357 of 561#46 of 86
Diversity index
ranked most diverse first
59.7%#141 of 561#45 of 86
Free and reduced lunch
ranked highest share first
27.3%#534 of 666#67 of 89
Enrollment change since 2017-18
ranked steepest decline first
-11.5%#207 of 359#37 of 64
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
667
+31 (+5%) vs 2020
+22% since 2010-11, when it was 547
Student : Teacher
14.1:1
was 15.5:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2566747.314.1:127% (182)
2023-2466345.814.5:134% (228)
2022-2366246.514.2:133% (220)
2020-216364115.5:123% (144)
2017-1875444.217.1:122% (164)
2015-167044216.8:119% (133)
2010-115473814.4:118% (98)
Source: NCES Common Core of Data. Rows are the federal collections on file for Timber Ridge Elementary.

Since 2017-18: students down 12% (754 to 667); teachers up 7% (44.2 to 47.3).

About Timber Ridge Elementary

A large elementary school in Johnston, Iowa, Timber Ridge Elementary is part of Johnston Comm School District. The school serves kindergarten through 5. Enrollment is 667 students. By comparison, elementary schools in Iowa enroll about 325 students on average.

Besides Timber Ridge Elementary, Johnston Comm School District runs 7 other schools. The district enrolls 7,339 students.

Of every 100 students at Timber Ridge Elementary, about 60 are White. Other reported shares: 14% Asian, 10% Black, 9% Hispanic, and 6% multiracial. Polk County's residents are about 76% White, 16 points above the school's share. On the diversity index, which measures the chance that two random students are from different groups, Timber Ridge Elementary scores 60%.

Its ratio of 14.1:1 is based on 47.3 full-time-equivalent teachers. That is in line with the 13.7:1 average for elementary schools in Iowa. The share of students eligible for free or reduced-price lunch is 27%. By comparison, the figure for public schools in Polk County is 49%.

Schools in Iowa with a similar free or reduced-price lunch share are predicted to score about 78.3%. Timber Ridge Elementary scores 73.9%.

For the population of Polk County, median household income comes to about $83,576, roughly 40% of adults have a four-year degree or more, and about 7% of residents live below the federal poverty line. Polk County's 137 public schools enroll about 77,436 students and include Timber Ridge Elementary.

A public school about 1.3 miles away, Urbandale Middle School, is the closest to Timber Ridge Elementary. Inside a five-mile radius, there are at least 8 other public schools. The school's 73.9% average proficiency ranks 6th among 9 nearby schools.

The school's locale code, Suburb: Large, means it is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Over the 4 years from 2020-21 to 2024-25, enrollment rose 5%. Its ratio of students to teachers was 15.5:1 in 2020-21, and 14.1:1 in 2024-25.

The discussion board for Timber Ridge Elementary is open to topics like pickup and drop-off, after-school programs, and teacher feedback. Teachers and staff are welcome to share updates too.

Polk County at a glance

View full county profile
Population
503,175
Census ACS
Median income
$83,576
Household, ACS
Bachelor's+
40%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
137
77,436 students

Quick facts

School name
Timber Ridge Elementary
District
Johnston Comm School District
Address
7370 NW 54th AVE, Johnston, IA 50131
Phone
(515) 331-4379
County
Polk County
Level
Elementary
Grade range
KG–05
Total enrollment
667
Teachers (FTE)
47
Student–teacher ratio
14.1:1
Free and reduced lunch
182 (27%)
Locale
21-Suburb: Large
NCES ID
191545001412
Charter school
No
Virtual school
No

Related schools

Other schools in Johnston Comm School District
Other schools in Johnston
Other Timber Ridge Elementary schools

5 other US public schools in 5 states are named Timber Ridge Elementary. Timber Ridge Elementary is the 3rd largest of the 6.

Nearby schools

Frequently asked questions

About Timber Ridge Elementary
What is the total enrollment at Timber Ridge Elementary?
Timber Ridge Elementary enrolls approximately 667 students in grades KG-05.
What grades does Timber Ridge Elementary serve?
Timber Ridge Elementary serves grades KG-05.
What is the student-teacher ratio at Timber Ridge Elementary?
The student-to-teacher ratio at Timber Ridge Elementary is approximately 14.1:1 (47 FTE teachers).
What is the racial breakdown of students at Timber Ridge Elementary?
At Timber Ridge Elementary, the student body is approximately 60% White, 9% Hispanic, 10% Black, 14% Asian, 6% Two or more.
Who oversees Timber Ridge Elementary?
Timber Ridge Elementary is overseen by Johnston Comm School District in Polk County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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