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SCHOOL COMMUNITY·SUMMIT PUBLIC SCHOOL: SIERRA·NCES 530033403510

Summit Public School: Sierra

1025 S King St, Seattle, WA 98104 · (206) 453-2520 · King County
GRADES 09–12HIGH11-CITYCHARTERREGULAR SCHOOL214 STUDENTS
Enrollment
214
High
STATE 573
Student : Teacher
15.3:1
14 FTE teachers
STATE 21.6:1
Free / Reduced Lunch
38%
82 students
STATE 51%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
43
Grade 10
59
Grade 11
50
Grade 12
62
Student demographics
White
8841%
STATE 47%
Hispanic
2813%
STATE 27%
Black
5626%
STATE 5%
Asian
84%
STATE 9%
Two+
2612%
STATE 9%
Native American
10%
STATE 1%
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
12860%
Female
7937%

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Test scores

Smarter Balanced + WCAS 2024-25 . % Met or Exceeded Standard
English Language Arts
50.0%
WA avg 58.4% . -16.3pp since 2017
Math
23.3%
WA avg 51.2% . -12.6pp since 2017
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
45.4%
composite math + reading, all grades
Predicted
54.5%
based on WA schools with similar FRL share
Beats by
-9.1pp
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
214
-83 (-28%) vs 2017
Student : Teacher
15.3:1
was 148.5:1
% White
41%
was 26%
% Hispanic
13%
was 9%
% Black
26%
was 41%
% Asian
4%
was 10%
Source: NCES Common Core of Data

About Summit Public School: Sierra

Summit Public School: Sierra is a four-year high school of very small scale in Seattle, Washington, part of Summit Public School: Sierra, hosting 214 students in grades 9 through 12. Compared to the state average of about 573 students per school, that is 63% smaller than typical.

Summit Public School: Sierra is the operating authority for Summit Public School: Sierra, handling staffing, calendars, and reporting to the state department of education.

In terms of who attends, Summit Public School: Sierra reports that the most-represented group is White (41%), with the rest of the student body spread across multiple groups; the rest looks like 26% Black, 13% Hispanic, 12% multiracial, 4% Asian. That is meaningfully less White than the county at large, where the share is closer to 55%.

Looking at the economic backdrop, Summit Public School: Sierra lists 14 full-time-equivalent teachers, putting the student-to-teacher ratio at about 15.3:1. The state averages around 21.6:1, so this campus is tighter than the state norm typical. About 38% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

On a residual basis (actual vs predicted given the student mix), Summit Public School: Sierra sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 54.5%; this one delivers 45.4%.

In the surrounding community, ACS estimates for King County put the typical household earns roughly $124,746 per year, about 57% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 5%. In all, King County runs 544 public schools (combined enrollment of about 278,492 students), of which Summit Public School: Sierra is one.

Nearest neighbor: Bailey Gatzert Elementary School, around 0.3 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Summit Public School: Sierra at 4th of 6; the average score across the group is 52.4%.

Summit Public School: Sierra operates from an inner-city location. Summit Public School: Sierra operates as a public charter school, meaning it is publicly funded but governed independently of the surrounding district's traditional schools.

Looking at the recent track record. Summit Public School: Sierra's enrollment has decreased 28% since 2018, when it stood at 297 (now 214). Over the same period, the White share edged up from 26% to 41%. Class-load math has narrowed: from 148.5:1 in 2018 to 15.3:1 in 2025.

Inside the community feed, the page collects discussion, questions, and updates around pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.

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
Summit Public School: Sierra
District
Summit Public School: Sierra
Address
1025 S King St, Seattle, WA 98104
Phone
(206) 453-2520
County
King County
Level
High
Grade range
09–12
Total enrollment
214
Teachers (FTE)
14
Student–teacher ratio
15.3:1
Free/Reduced lunch
82 (38%)
Locale
11-City: Large
NCES ID
530033403510
Charter school
Yes
Virtual school
No

Related schools

Other schools in Seattle
Nearby schools

Frequently asked questions

About Summit Public School: Sierra
How large is Summit Public School: Sierra?
Summit Public School: Sierra enrolls approximately 214 students in grades 09-12.
Is Summit Public School: Sierra an elementary, middle, or high school?
Summit Public School: Sierra is a high school covering grades 09-12.
How many teachers does Summit Public School: Sierra have?
Summit Public School: Sierra employs 14 FTE teachers, for a student-to-teacher ratio of 15.3:1.
What is the student diversity at Summit Public School: Sierra?
Student demographics at Summit Public School: Sierra are roughly 41% White, 13% Hispanic, 26% Black, 4% Asian, 12% Two or more.
What district is Summit Public School: Sierra in?
Summit Public School: Sierra is part of Summit Public School: Sierra.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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