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SCHOOL COMMUNITY·MUKILTEO SCHOOL DISTRICT·NCES 530543002263

Columbia Elementary

10520 Harbour Pointe Blvd, Mukilteo, WA 98275 · (425) 366-2600 · Snohomish County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL596 STUDENTS
Enrollment
596
Elementary
DISTRICT 507 · STATE 380
Student : Teacher
15.6:1
38 FTE teachers
DISTRICT 14.7:1 · STATE 17.3:1
Free / Reduced Lunch
33%
198 students
DISTRICT 56% · STATE 51%
Community
1
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
89
Kindergarten
88
Grade 1
66
Grade 2
85
Grade 3
93
Grade 4
86
Grade 5
89
Student demographics
White
26044%
DISTRICT 34% · STATE 47%
Hispanic
12321%
DISTRICT 30% · STATE 27%
Black
386%
DISTRICT 10% · STATE 5%
Asian
11519%
DISTRICT 15% · STATE 9%
Two+
539%
DISTRICT 9% · STATE 9%
Native American
31%
DISTRICT 0% · STATE 1%
Pacific Islander
41%
DISTRICT 2% · 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
32154%
Female
27546%

Discussions

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Test scores

Smarter Balanced + WCAS 2024-25 . % Met or Exceeded Standard
English Language Arts
55.1%
WA avg 58.4% . -3.9pp since 2014
Math
57.8%
WA avg 51.2% . +3.4pp since 2014

What this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 55 of every 100 students at this school read and write at grade level and about 58 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are down about 4 points since 2014, while math scores are up about 3 points.

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
58.5%
composite math + reading, all grades
Predicted
57.9%
based on WA schools with similar FRL share
Beats by
+0.6pp
above demographic expectation

What this means: About 59% of students here test proficient in math and reading, compared with the roughly 58% typical for Washington 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 Washington'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 →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
596
+18 (+3%) vs 2017
Student : Teacher
15.6:1
was 16.2:1
% White
44%
was 54%
% Hispanic
21%
was 15%
% Black
6%
was 5%
% Asian
19%
was 12%
Source: NCES Common Core of Data

About Columbia Elementary

Columbia Elementary is a big elementary-level community in Mukilteo, Washington, run under Mukilteo School District. The school caters to 596 students in grades pre-K through 5. Compared to the state average of about 380 students per school, that is 57% bigger than typical.

Columbia Elementary is one of 23 schools operated by Mukilteo School District, a district that hosts 15,175 students overall.

On the student-mix side, Columbia Elementary logs that 44% of students identify as White, with the remaining enrollment distributed across several groups; the rest breaks down as 21% Hispanic, 19% Asian, 9% multiracial, 6% Black. That is noticeably less White than the county at large, where the share is closer to 64%.

Looking at school resources, The school employs 38 full-time-equivalent teachers, for a student-teacher ratio near 15.6:1. That figure is tighter than the state norm's 17.3:1 average. An estimated 33% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is below Snohomish County's rate of about 41%.

After controlling for student poverty, Columbia Elementary tracks the demographic baseline. The model predicts 57.9% given the school's FRL share; actual proficiency is 58.5%.

Across the wider county, ACS estimates for Snohomish County put median household earnings sit near $111,246, 38% of adults hold a bachelor's degree or higher, and the poverty rate sits near 6%. In all, Snohomish County runs 227 public schools (combined enrollment of about 118,688 students), of which Columbia Elementary is one.

The closest other public school is Kamiak High School, roughly 0.1 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Columbia Elementary comes 4th of 7 in the immediate cluster, higher than the nearby-schools average of 55.8%.

Columbia Elementary operates from a suburban location.

Looking at the recent track record. Looking back 7 years, enrollment at Columbia Elementary has expanded 3%, going from 578 students in 2018 to 596 in 2025. The White share of enrollment contracted from 54% to 44% over that span.

On the community side, the page collects discussion, questions, and updates around school events, parent volunteer needs, and clubs. Members of the school community can share what they know.

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
Columbia Elementary
District
Mukilteo School District
Address
10520 Harbour Pointe Blvd, Mukilteo, WA 98275
Phone
(425) 366-2600
County
Snohomish County
Level
Elementary
Grade range
PK–05
Total enrollment
596
Teachers (FTE)
38
Student–teacher ratio
15.6:1
Free/Reduced lunch
198 (33%)
Locale
21-Suburb: Large
NCES ID
530543002263
Charter school
No
Virtual school
No

Related schools

Other schools in Mukilteo School District
Other schools in Mukilteo
Nearby schools

Frequently asked questions

About Columbia Elementary
How many students attend Columbia Elementary?
Columbia Elementary enrolls approximately 596 students in grades PK-05.
What grades does Columbia Elementary serve?
Columbia Elementary serves grades PK-05.
How many teachers does Columbia Elementary have?
Columbia Elementary employs 38 FTE teachers, for a student-to-teacher ratio of 15.6:1.
How diverse is Columbia Elementary?
Columbia Elementary reports a student body of 44% White, 21% Hispanic, 6% Black, 19% Asian, 9% Two or more.
Is Columbia Elementary public or private?
Columbia Elementary is a public K-12 school, overseen by Mukilteo School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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