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SCHOOL COMMUNITY·EDMONDS SCHOOL DISTRICT·NCES 530240000356

Mountlake Terrace High School

21801 44TH AVE W, MTLK TERRACE, WA 98043 · (425) 431-7776 · Snohomish County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,456 STUDENTS
Enrollment
1,456
High
DISTRICT 957 · STATE 573
Student : Teacher
23.2:1
63 FTE teachers
DISTRICT 20.7:1 · STATE 21.6:1
Free / Reduced Lunch
36%
529 students
DISTRICT 43% · STATE 51%
Community
1
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
421
Grade 10
352
Grade 11
369
Grade 12
314
Student demographics
White
71949%
DISTRICT 44% · STATE 47%
Hispanic
26318%
DISTRICT 24% · STATE 27%
Black
14310%
DISTRICT 10% · STATE 5%
Asian
22115%
DISTRICT 14% · STATE 9%
Two+
665%
DISTRICT 6% · STATE 9%
Native American
60%
DISTRICT 0% · STATE 1%
Pacific Islander
181%
DISTRICT 1% · 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
79855%
Female
63844%

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Test scores

Smarter Balanced + WCAS 2024-25 . % Met or Exceeded Standard
English Language Arts
57.6%
WA avg 58.4% . +46.7pp since 2014
Math
35.5%
WA avg 51.2% . +29.8pp since 2014
Source: Smarter Balanced + WCAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of WA schools after controlling for student poverty
Actual proficiency
41.8%
composite math + reading, all grades
Predicted
55.8%
based on WA schools with similar FRL share
Beats by
-14.1pp
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
1,456
+93 (+7%) vs 2017
Student : Teacher
23.2:1
was 23.3:1
% White
49%
was 56%
% Hispanic
18%
was 16%
% Black
10%
was 5%
% Asian
15%
was 11%
Source: NCES Common Core of Data

About Mountlake Terrace High School

Mountlake Terrace High School, a big secondary school in MTLK TERRACE, Washington, one of the schools within Edmonds School District, teaches 1,456 students, covering grades 9 through 12. By comparison, Washington's public schools average about 573 students each, so Mountlake Terrace High School sits 154% larger than that benchmark.

Across the 37 schools in Edmonds School District (20,955 students total), Mountlake Terrace High School accounts for its share of the district's footprint.

In terms of who attends, Mountlake Terrace High School shows that the largest single group is White at 49%, but no single group is in the majority. Beyond that, the school lists 18% Hispanic, 15% Asian, 10% Black, 5% multiracial. The wider county runs roughly 64% White, putting the school's mix noticeably less White than the area baseline.

On the resource side, Staff filings list 63 full-time-equivalent teachers, which works out to roughly 23.2:1 students per teacher. Statewide, the average ratio sits near 21.6:1, putting Mountlake Terrace High School higher than the state norm the norm. About 36% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy.

After controlling for student poverty, On a poverty-adjusted basis, Mountlake Terrace High School sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 55.8%; actual is 41.8%, a gap of -14.1 points.

Zooming out to the county, the surrounding county (Snohomish County) logs that median household earnings sit near $111,246, about 38% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 6%. Mountlake Terrace High School is one of 227 public schools in Snohomish County (combined enrollment of about 118,688 students).

The closest other public school is Cedar Way Elementary, roughly 0.3 miles away. Within five miles, there are 8 other public schools. On composite proficiency, Mountlake Terrace High School comes 6th of 8 in the immediate cluster, beneath the nearby-schools average of 49.0%.

Mountlake Terrace High School operates from a suburban location.

Looking at the recent track record. Mountlake Terrace High School's enrollment has edged up 7% since 2018, when it stood at 1,363 (now 1,456). Over the same period, the White share fell from 56% to 49%.

On the community side, the feed for Mountlake Terrace High School typically covers pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.

Snohomish County at a glance

View full county profile
Population
844,430
Census ACS
Median income
$111,246
Household, ACS
Bachelor's+
38%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
227
118,688 students

Quick facts

School name
Mountlake Terrace High School
District
Edmonds School District
Address
21801 44TH AVE W, MTLK TERRACE, WA 98043
Phone
(425) 431-7776
County
Snohomish County
Level
High
Grade range
09–12
Total enrollment
1,456
Teachers (FTE)
63
Student–teacher ratio
23.2:1
Free/Reduced lunch
529 (36%)
Locale
21-Suburb: Large
NCES ID
530240000356
Charter school
No
Virtual school
No

Related schools

Other schools in Edmonds School District
Other schools in MTLK TERRACE
Nearby schools

Frequently asked questions

About Mountlake Terrace High School
How many students attend Mountlake Terrace High School?
Mountlake Terrace High School enrolls approximately 1,456 students in grades 09-12.
What grades does Mountlake Terrace High School serve?
Mountlake Terrace High School serves grades 09-12.
What is the student-teacher ratio at Mountlake Terrace High School?
The student-to-teacher ratio at Mountlake Terrace High School is approximately 23.2:1 (63 FTE teachers).
What is the racial breakdown of students at Mountlake Terrace High School?
At Mountlake Terrace High School, the student body is approximately 49% White, 18% Hispanic, 10% Black, 15% Asian, 5% Two or more.
Who oversees Mountlake Terrace High School?
Mountlake Terrace High School is overseen by Edmonds School District in Snohomish County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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