Private School Review - Established 2003
St. Rose School
Three Rivers Christian School

Cowlitz County Private Schools

For the 2026-27 school year, there are 8 private schools serving 560 students in Cowlitz County, WA (there are 48 public schools, serving 17,236 public students). 3% of all K-12 students are educated in private schools (compared to the WA state average of 10%).
The average acceptance rate is 98%, which is higher than the Washington private school average acceptance rate of 85%.
63% of private schools in Cowlitz County, WA are religiously affiliated (most commonly Other and Assembly of God).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Cowlitz County Private Schools (2026-27)

St. Rose School Photo
St. Rose School
Gr: PK-8 | 164 students
Avg. class size: 13 students
Sports: 4 | Extracurriculars: 5
Catholic
720 26th Ave
Longview, WA 98632
(360) 425-4660
View Profile
Three Rivers Christian School Photo
Three Rivers Christian School
Gr: K-6 | 149 students
Avg. class size: 18 students
Sports: 6
Christian
2610 Ocean Beach Hwy
Longview, WA 98632
(360) 423-4510
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Map of Big Leaf Montessori School
Big Leaf Montessori School
Gr: PK-4 | 39 students
Montessori School
1428 22nd Ave
Longview, WA 98632
(360) 200-8976
(1)
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Map of Family House Academy
Family House Academy
Gr: K-8 | 26 students
Alternative School
1220 Carroll Rd
Kelso, WA 98626
(360) 425-7481
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Map of Gateway Learning Center
Gateway Learning Center
Gr: K-12 | 42 students
Alternative School
1157 3rd Ave Suite 125
Longview, WA 98632
(360) 577-3939
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Map of Journey Christian School
Journey Christian School
Gr: PK-8 | 67 students
Avg. class size: 14 students
Seventh Day Adventist
96 Garden St
Kelso, WA 98626
(360) 423-9250
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Map of Kelso Christian Academy
Kelso Christian Academy
Gr: PK-K | 34 students
Daycare / Preschool (Assembly of God)
403 Academy St
Kelso, WA 98626
(360) 423-8740
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Map of Montessori Childrens House Of Long View
Montessori Childrens House Of Long View
Gr: PK-K | 39 students
Montessori School
3137 Columbia Heights Rd
Longview, WA 98632
(360) 578-9885
(1)
View Profile

Overview

Category
This State (WA)
US
# Schools
8 Schools
# Students
560 Students
118,587 Students
% Average Students of Color
18%
32%

Academics and Faculty:

# Teachers
38 Teachers
9,998 Teachers
Average Student-Teacher Ratio
15:1
12:1
% Average Faculty w/Advanced Degree
85%
59%
Average Class Size
15 students
15 students
Average Number of AP Courses
15 courses
11 courses

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$6,302
$15,225
Average % on Financial Aid
40%
28%
Average Financial Aid Grant
$1,300
$9,416
Average Acceptance Rate
98%
85%

Students by Ethnicity:

0.55
0.64
# American Indian Students
5 Students
1,226 Students
% American Indian Students
1%
1%
# Asian Students
11 Students
9,040 Students
% Asian Students
2%
8%
# Hispanic Students
36 Students
6,302 Students
% Hispanic Students
6%
5%
# Black Students
9 Students
3,815 Students
% Black Students
2%
3%
# White Students
350 Students
59,127 Students
% White Students
61%
50%
# Hawaiian Students
2 Students
651 Students
% Hawaiian Students
<1%
1%
# Others Students
157 Students
37,123 Students
% of Others Students
28%
32%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
5 extracurriculars
8 extracurriculars
Average Number of Sports
5 sports
6 sports

Frequently Asked Questions

What are the top ranked private schools in Cowlitz County, WA?
The top ranked private schools in Cowlitz County, WA include St. Rose School and Three Rivers Christian School.
How many private schools are located in Cowlitz County?
8 private schools are located in Cowlitz County.
How diverse are private schools in Cowlitz County?
Cowlitz County private schools are approximately 18% minority students, which is lower than the Washington private school average of 32%.
What percentage of students in Cowlitz County go to private school?
3% of all K-12 students in Cowlitz County are educated in private schools (compared to the WA state average of 10%).
What percentage of private schools are religiously affiliated in Cowlitz County?
63% of private schools in Cowlitz County are religiously affiliated (most commonly Other and Assembly of God).
Which private schools in Cowlitz County are often viewed compared to one another?

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