For the 2026 school year, there is 1 private high school serving 132 students in Mountlake Terrace, WA.
100% of private high schools in Mountlake Terrace, WA are religiously affiliated (most commonly Catholic).
Private High Schools in Mountlake Terrace, WA (2026)
School
Location
Quick Facts
St. Pius X Elementary School
(Catholic)
22105 58th Ave W
Mountlake Terrace, WA 98043
(425) 778-9861
Mountlake Terrace, WA 98043
(425) 778-9861
Gr: K-9 | 132 students
Overview
This Town (Mountlake Terrace)
This State (WA)
# Schools
1 School
Student Body:
# Students
132 Students
55,331 Students
% Average Students of Color
62%
29%
Academics and Faculty:
# Teachers
10 Teachers
4,869 Teachers
Average Student-Teacher Ratio
13:1
11:1
Tuition and Acceptance Rate:
Students by Ethnicity:
Diversity Score
0.77
0.61
# American Indian Students
n/a
621 Students
% American Indian Students
n/a
1%
# Asian Students
37 Students
4,170 Students
% Asian Students
28%
8%
# Hispanic Students
17 Students
2,314 Students
% Hispanic Students
13%
4%
# Black Students
12 Students
1,553 Students
% Black Students
9%
3%
# White Students
40 Students
30,343 Students
% White Students
30%
56%
# Hawaiian Students
n/a
237 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
26 Students
15,168 Students
% of Others Students
20%
28%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
How many private high schools are located in Mountlake Terrace, WA?
1 private high schools are located in Mountlake Terrace, WA.
What percentage of private high schools are religiously affiliated in Mountlake Terrace?
100% of private high schools in Mountlake Terrace are religiously affiliated (most commonly Catholic).
Recent Articles
How to Ask About Staff Screening Without Apologizing
Parents should feel comfortable asking how private schools screen employees. Learn which questions matter, what answers to expect, and why transparency about hiring and student safety is a hallmark of a well-managed school.
What Facility Safety Tells You About School Oversight
A school's facilities reveal far more than appearance. Learn how building maintenance, emergency preparedness, and campus safety practices can help parents evaluate school leadership, oversight, and long-term commitment to student well-being.
Is the School Legally a School? A Parent Verification Checklist
Before enrolling your child in a private school, learn how to verify that it is legally operating, properly accredited, and authorized to issue recognized diplomas with this practical parent checklist for making a confident school choice.