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SCHOOL COMMUNITY·TUKWILA SCHOOL DISTRICT·NCES 530813001343

Thorndyke Elementary

4415 S 150TH ST, SEATTLE, WA 98188 · (206) 901-7600 · King County
GRADES PK–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL386 STUDENTS
Enrollment
386
Elementary
DISTRICT 442 · STATE 380
Student : Teacher
14.7:1
26 FTE teachers
DISTRICT 18.6:1 · STATE 17.3:1
Free / Reduced Lunch
87%
334 students
DISTRICT 77% · STATE 51%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Pre-K
37
Kindergarten
57
Grade 1
64
Grade 2
66
Grade 3
52
Grade 4
57
Grade 5
53
Student demographics
White
3710%
DISTRICT 10% · STATE 47%
Hispanic
13836%
DISTRICT 36% · STATE 27%
Black
11129%
DISTRICT 22% · STATE 5%
Asian
5213%
DISTRICT 22% · STATE 9%
Two+
164%
DISTRICT 6% · STATE 9%
Native American
21%
DISTRICT 0% · STATE 1%
Pacific Islander
185%
DISTRICT 4% · STATE 2%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
19551%
Female
17946%

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Test scores

Smarter Balanced + WCAS 2024-25 . % Met or Exceeded Standard
English Language Arts
26.4%
WA avg 58.4% . -19.1pp since 2014
Math
17.9%
WA avg 51.2% . -30.5pp since 2014
Source: Smarter Balanced + WCAS. 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
21.2%
composite math + reading, all grades
Predicted
22.1%
based on WA schools with similar FRL share
Beats by
-0.9pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
386
+14 (+4%) vs 2017
Student : Teacher
14.7:1
was 15.1:1
% White
10%
was 8%
% Hispanic
36%
was 33%
% Black
29%
was 25%
% Asian
13%
was 19%
Source: NCES Common Core of Data

About Thorndyke Elementary

Set in SEATTLE, Washington, Thorndyke Elementary is a middle-of-the-pack primary school, overseen by Tukwila School District. It serves 386 students across grades pre-K through 5.

Across the 5 schools in Tukwila School District (2,886 students total), Thorndyke Elementary accounts for its share of the district's footprint.

In terms of who attends, Thorndyke Elementary reports that the largest single group is Hispanic at 36%, but no single group is in the majority. Other groups include 29% Black, 13% Asian, 10% White, 5% Pacific Islander. The wider county runs roughly 11% Hispanic, putting the school's mix visibly more Hispanic than the area baseline.

Looking at school resources, On paper, Thorndyke Elementary has 26 full-time-equivalent teachers, translating to a class-load average of around 14.7:1. The state averages around 17.3:1, so this campus is tighter than the state norm typical. An estimated 87% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is north of King County's rate of about 38%.

On a residual basis (actual vs predicted given the student mix), Thorndyke Elementary performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 22.1%, the actual is 21.2%, a residual of -0.9 points.

Around the school, ACS estimates for King County put median household income runs about $124,746, 57% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 5%. In all, King County runs 544 public schools (combined enrollment of about 278,492 students), of which Thorndyke Elementary is one.

The closest other public school is Showalter Middle School, roughly 0.5 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Thorndyke Elementary ranks 6th on composite proficiency, below the local average of 29.6%.

The campus sits in a commuter-belt setting.

Trend over the last 7 years. Looking back 7 years, enrollment at Thorndyke Elementary has grew 4%, going from 372 students in 2018 to 386 in 2025. Asian enrollment moved from 19% to 13% across the same window.

On allk12, recent activity here tends to focus on classroom updates, athletics, and weather closures. Parents, students, alumni, and staff are welcome to weigh in.

King County at a glance

View full county profile
Population
2,287,171
Census ACS
Median income
$124,746
Household, ACS
Bachelor's+
57%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
544
278,492 students

Quick facts

School name
Thorndyke Elementary
District
Tukwila School District
Address
4415 S 150TH ST, SEATTLE, WA 98188
Phone
(206) 901-7600
County
King County
Level
Elementary
Grade range
PK–05
Total enrollment
386
Teachers (FTE)
26
Student–teacher ratio
14.7:1
Free/Reduced lunch
334 (87%)
Locale
21-Suburb: Large
NCES ID
530813001343
Charter school
No
Virtual school
No

Related schools

Other schools in Tukwila School District
Other schools in SEATTLE
Nearby schools

Frequently asked questions

About Thorndyke Elementary
What is the total enrollment at Thorndyke Elementary?
Thorndyke Elementary enrolls approximately 386 students in grades PK-05.
What grades does Thorndyke Elementary serve?
Thorndyke Elementary serves grades PK-05.
How many students per teacher at Thorndyke Elementary?
Approximately 14.7:1 students per teacher at Thorndyke Elementary.
What is the student diversity at Thorndyke Elementary?
Student demographics at Thorndyke Elementary are roughly 10% White, 36% Hispanic, 29% Black, 13% Asian, 4% Two or more.
Is Thorndyke Elementary public or private?
Thorndyke Elementary is a public K-12 school, overseen by Tukwila School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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