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Needs Improvement

#2143 of 2,225 schools in WA

Mountlake Terrace High School

High School · Edmonds School District

21801 44TH AVE W, Mtlk Terrace, WA 98043

Enrollment

1,385

Student-Teacher

22.7:1

Score

3.6

Grades

9th – 12th

Updated 2022-23

How this school compares

In Mtlk Terrace

#4 of 4

public schools

Washington high schools

#455 of 476

In district

#34 of 36

Edmonds School District

About Mountlake Terrace High School

Mountlake Terrace High School serves 1,385 students in grades 9-12 in Mountlake Terrace, Washington, with a student-teacher ratio of 22.7:1 and 61 full-time equivalent teachers. This regular public school has earned strong recognition, ranking #315 out of 2,261 schools statewide, placing it in the 86th percentile among Washington high schools. The school demonstrates solid academic performance with a MySchoolScout rating of 7.3 out of 10 and an impressive academic score of 9.4 out of 10.

Students show particularly strong literacy skills, with 80% achieving proficient or above levels in ELA/Reading across grade levels. This academic success reflects both the school's educational programs and the supportive community environment. Located in Snohomish County, Mountlake Terrace High School draws from a stable suburban community where the median household income reaches $96,085 and the poverty rate remains relatively low at 7.3%.

The surrounding ZIP code 98043 is home to 21,347 residents, with 41% holding bachelor's degrees or higher, indicating strong community support for education. Median home values of $560,400 reflect the area's desirability and stability. The school operates within a large suburban setting that provides students with access to both educational opportunities and community resources while maintaining a manageable school size that allows for meaningful student-teacher relationships.

What Parents Should Know

The student-teacher ratio at Mountlake Terrace High School is 22.7:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress1.9Significantly Below Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change-5.66 pts/yr
Data Period2019–2024
TrendDeclining
Academics4.5Below Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency26.4%
Reading/ELA Proficiency46.4%
Math vs. State Avg-5.1 pts
Reading vs. State Avg-14.8 pts
Overall Proficiency36%
Expected (poverty-adj.)53%
vs. Expected-16.7 pts
Adjusted Percentile26th
College Readiness4.5Below Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation19.7%
IB ProgramNo
Resources & Environment3.1Fair20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio22.7:1
Per-Pupil Spending$17,670

Mountlake Terrace High School — Students at Mountlake Terrace High School score 36% proficient, which is below what's typical for similar communities (expected: 53%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

37.2%

Students qualifying for federal meal assistance

Test Scores WA SBA (2023-24)

Math Proficiency 34.6%
School
State
35.8%
ELA Proficiency 63.5%
School
State
55.9%

Based on 9 test records from WA state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
51%
ELA
81%
2022
ELA
80%
2024
Math
26.4%
ELA
46.4%

Source: EdFacts (NCES) and state assessment data. Growth score: 1.9/10.

How Mountlake Terrace High School Compares

See how Mountlake Terrace High School performs across key quality dimensions compared to state benchmarks.

Overall Score
3.6/10
4th percentile in WA
Academic
4.5/10
4.5/10
Growth
1.9/10
Below average
Environment
3.1/10
Below average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
37%
Teaching Staff
23:1 student-teacher ratio
61 teachers

Location

21801 44TH AVE W, Mtlk Terrace, WA 98043

Nearby Alternatives

Families considering Mountlake Terrace High School may also want to explore other high schools in the area. Terrace Park Elementary (rated 9.2/10, 1.1 miles away), which scores notably higher. Another option is Cascade K-8 Community School (rated 9.2/10, 2.0 miles away, in nearby Shoreline), which scores notably higher. Additionally, Spruce Elementary (rated 8.2/10, 2.7 miles away, in nearby Lynnwood), which scores notably higher. For more schools in Mtlk Terrace, see our Mtlk Terrace schools guide .

Nearby Schools

20 within 1.9 mi
School Distance Rating
Cedar Way Elementary Mtlk Terrace 0.3 mi 5.7
Brier Terrace Middle School Brier 0.6 mi 6.8
Mountlake Terrace Elementary Mountlake Terrace 0.6 mi 5.2
Brier Elementary Brier 0.9 mi 7.6
Hazelwood Elementary Lynnwood 1.0 mi 5.3
Challenge Elementary Mtlk Terrace 1.1 mi 7.6
Terrace Park Elementary Mtlk Terrace 1.1 mi 9.2
BRIGHTON SCHOOL Mountlake Terrace 1.0 mi 8.1
REDEMPTION EVANGELICAL LUTHERAN Lynnwood 1.4 mi
Lynnwood Elementary Lynnwood 2.0 mi 4.4
CYPRESS ADVENTIST SCHOOL Lynnwood 1.4 mi 6.6
Home Education Exchange Shoreline 2.0 mi 7.6
Cascade K-8 Community School Shoreline 2.0 mi 9.2
Cedar Valley Community School Lynnwood 1.8 mi 5.8
Early Childhood Center Lynnwood 1.6 mi 3.9
LAKE FOREST PARK MONTESSORI Shoreline 2.2 mi
Lake Forest Park Elementary Lake Forest Park 2.7 mi 6.9
Spruce Elementary Lynnwood 2.7 mi 8.2
SOUNDVIEW SCHOOL Lynnwood 2.1 mi 7.6
Contracted Schools Lynnwood 1.9 mi

Neighborhood Census ACS (2019-2023)

Census data for ZIP 98043 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$101,408

Median Home Value

$605,800

Median Rent

$1,966/mo

Population

21,417

College Educated

41.8%

Homeownership

56.1%

Avg Commute

31 min

Poverty Rate

8%

Median Age

38.2

Community Profile

The community surrounding Mountlake Terrace High School has a median household income of $101,408. It is a well-educated community where 42% of adults hold a bachelor's degree or higher. The median home value in the area is $605,800, with a median rent of $1,966/month. The local poverty rate of 8.0% is relatively low. The average commute for residents is 31 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Prosser High School Prosser, WA 3.6
Bremerton High School Bremerton, WA 3.5
Highline High School Burien, WA 3.7
Lindbergh Senior High School Renton, WA 3.5
Orting High School Orting, WA 3.7
Shadle Park High School Spokane, WA 3.5

Frequently Asked Questions

Common questions about Mountlake Terrace High School

What grades does Mountlake Terrace High School serve?

Mountlake Terrace High School serves students in grades 9th through 12th.

How many students attend Mountlake Terrace High School?

Mountlake Terrace High School has an enrollment of approximately 1,385 students.

What is the student-teacher ratio at Mountlake Terrace High School?

The student-teacher ratio at Mountlake Terrace High School is 22.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Mountlake Terrace High School rank in WA?

Mountlake Terrace High School is ranked #2143 out of 2,225 schools in WA.

What is Mountlake Terrace High School's MySchoolScout rating?

Mountlake Terrace High School has a composite rating of 3.6 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Mountlake Terrace High School?

Based on the most recent state assessment data, Mountlake Terrace High School has 34.6% math proficiency and 63.5% reading/ELA proficiency.

Is Mountlake Terrace High School a charter school?

No, Mountlake Terrace High School is not a charter school. It is a traditional public school operated by the local school district.

Is Mountlake Terrace High School a Title I school?

No, Mountlake Terrace High School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Mountlake Terrace High School?

37.2% of students at Mountlake Terrace High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
29 Car-Dependent
Bike Score
41 Somewhat Bikeable
County Safety
Average (443/100K)

Powered by Walk Score

FBI UCR 2024. County-level only. Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
1,385
Student-Teacher Ratio
22.7:1
Teachers (FTE)
61
Free/Reduced Lunch
37.2%
Type
regular
Setting
Large Suburb
County
Snohomish County
Data Year
2023–2024

District

Edmonds School District
District Enrollment
20,755
Schools in District
38
Per-Pupil Spending
$18,710
District Rank
#34 of 36

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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