Private School Review - Established 2003
Hermiston Adventist School Top 3 · Highest % Faculty w/ Adv. Degrees (OR)
Pendleton Christian School Top 22 · Lowest Tuition (OR)

Best Umatilla County Private Schools (2026-27)

For the 2026-27 school year, there are 5 private schools serving 206 students in Umatilla County, OR (there are 35 public schools, serving 13,316 public students). 2% of all K-12 students are educated in private schools (compared to the OR state average of 10%).
The average acceptance rate is 90%, which is higher than the Oregon private school average acceptance rate of 85%.
100% of private schools in Umatilla County, OR are religiously affiliated (most commonly Seventh Day Adventist and Assembly of God).

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Umatilla County Private Schools (2026-27)

Hermiston Adventist School Photo
Hermiston Adventist School
Gr: PK-8 | 25 students
Extracurriculars: 2
Seventh Day Adventist
1300 NW Academy Ln
Hermiston, OR 97838
(541) 567-8523
View Profile
Pendleton Christian School Photo
Pendleton Christian School
Gr: K-8 | 22 students
Avg. class size: 15 students
Sports: 1 | Extracurriculars: 3
Seventh Day Adventist
3121 SW Hailey Ave
Pendleton, OR 97801
(541) 276-0615
View Profile
Map of Blue Mt. Valley Adventist School
Blue Mt. Valley Adventist School
Gr: K-8 | 14 students
Seventh Day Adventist
78606 1st St
Athena, OR 97813
(541) 566-0954
View Profile
Map of Hermiston Christian Center & School
Hermiston Christian Center & School
Gr: PK-12 | 83 students
Assembly of God
1825 W Highland Ave
Hermiston, OR 97838
(541) 567-3480
View Profile
Map of Milton-stateline Adventist School
Milton-stateline Adventist School
Gr: PK-8 | 62 students
Avg. class size: 12 students
Extracurriculars: 4
Seventh Day Adventist
53565 W. Crockett Rd
Milton Freewater, OR 97862
(541) 938-7131
(1)
View Profile

Overview

Category
This State (OR)
US
# Schools
5 Schools

Trends in Total Number of Private Schools

YearUmatilla County Total Schools
20255
20245
20235
20225
20215
20206
20196
20186
20175
20165
20155
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# Students
206 Students
58,351 Students

Trends in the Average Number of Students Per Private School

YearUmatilla County AverageOregon (OR) AverageNational Average
202541131179
202441128172
202342125174
202244128185
202143126180
202042118171
201952120175
201852119172
201764124180
201667123178
201567119167
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% Average Students of Color
18%
26%

Percentage of Students of Color Trends (2015-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
202518%25%34%
202418%25%34%
202325%25%33%
20229%25%33%
20219%25%32%
20209%24%32%
201917%24%31%
201818%23%31%
201719%25%32%
201616%25%32%
201516%25%32%
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Academics and Faculty:

# Teachers
21 Teachers
5,012 Teachers
Average Student-Teacher Ratio
10:1
12:1

Student-Teacher Ratio Trends (2015-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
202510:112:111:1
202410:112:111:1
202311:112:111:1
202210:113:111:1
202110:113:111:1
202011:113:112:1
201913:113:112:1
201813:113:112:1
201713:112:112:1
201613:112:112:1
201513:113:112:1
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% Average Faculty w/Advanced Degree
63%
63%

Percentage of Faculty With Advanced Degrees Trends (2018-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
202563%62%55%
202463%61%54%
202325%61%54%
202225%62%54%
202125%62%54%
20192%59%53%
20182%59%53%
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Average Class Size
14 students
16 students

Class Size Trends (2021-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
2025141615
2024141615
2023141615
2022141615
2021121615
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Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$4,504
$11,780

Tuition Cost Trends (2020-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
2025$9,628$12,154$15,012
2024$4,332$10,662$13,254
2023$3,850$10,187$12,626
2022$3,850$9,983$12,187
2021$3,800$9,763$11,800
2020$3,800$9,874$11,512
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Average % on Financial Aid
50%
30%

Percent on Financial Aid Trends (2022-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
202550%30%34%
202450%30%34%
202350%29%34%
202250%29%33%
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Average Financial Aid Grant
$100
$4,302

Financial Aid Grant Trends (2022-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
2025$100$4,082$7,073
2024$100$3,908$6,930
2023$100$3,759$6,469
2022$100$3,771$6,289
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Average Acceptance Rate
90%
85%

Acceptance Rate Trends (2022-2025)

YearUmatilla County AverageOregon (OR) AverageNational Average
202590%83%81%
202490%89%85%
202390%89%85%
202290%87%85%
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Students by Ethnicity:

0.43
0.61

Diversity Score Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
20250.430.610.65
20240.430.610.65
20230.530.620.65
20220.430.610.64
20210.430.610.64
20200.480.610.64
20190.430.610.63
20180.430.610.63
20170.350.570.61
20160.370.570.61
20150.370.570.61
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# American Indian Students
2 Students
403 Students
% American Indian Students
1%
1%

Percentage of Private School Students of American Indian Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
20251%1%1%
20241%1%1%
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# Asian Students
6 Students
2,978 Students
% Asian Students
3%
5%

Asian Student Percentage Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
20253%5%5%
20243%5%5%
20233%5%5%
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# Hispanic Students
26 Students
3,638 Students
% Hispanic Students
13%
6%

Hispanic Student Percentage Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
202513%6%9%
202413%6%9%
202315%7%9%
202215%6%8%
202115%6%9%
202013%6%9%
201913%6%8%
201813%6%8%
201711%4%8%
201611%4%8%
201511%4%8%
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# Black Students
1 Student
1,639 Students
% Black Students
1%
3%

Black Student Percentage Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
20251%3%7%
20241%3%7%
20221%3%7%
20211%3%7%
20201%3%8%
20191%3%7%
20181%3%7%
20172%2%7%
20162%2%7%
20152%2%8%
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# White Students
148 Students
31,766 Students
% White Students
74%
55%

White Student Percentage Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
202574%55%52%
202474%55%52%
202365%54%52%
202274%54%54%
202174%55%54%
202070%55%54%
201974%55%56%
201874%55%56%
201780%59%58%
201678%59%58%
201578%60%58%
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# Hawaiian Students
1 Student
379 Students
% Hawaiian Students
n/a
1%
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
15 Students
17,056 Students
% of Others Students
8%
29%

Other Races Student Percentage Trends

YearUmatilla County AverageOregon (OR) AverageNational Average
20257%29%26%
20247%29%26%
202317%30%25%
202210%30%25%
202110%30%25%
202016%30%24%
201912%30%24%
201812%30%23%
20177%29%22%
20169%29%22%
20159%28%21%
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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
3 extracurriculars
7 extracurriculars
Average Number of Sports
1 sports
6 sports

Frequently Asked Questions

What are the top ranked private schools in Umatilla County, OR?
The top ranked private schools in Umatilla County, OR include Pendleton Christian School and Hermiston Adventist School.
How many private schools are located in Umatilla County?
5 private schools are located in Umatilla County.
How diverse are private schools in Umatilla County?
Umatilla County private schools are approximately 18% minority students, which is lower than the Oregon private school average of 26%.
What percentage of students in Umatilla County go to private school?
2% of all K-12 students in Umatilla County are educated in private schools (compared to the OR state average of 10%).
What percentage of private schools are religiously affiliated in Umatilla County?
100% of private schools in Umatilla County are religiously affiliated (most commonly Seventh Day Adventist and Assembly of God).
Which private schools in Umatilla County are often viewed compared to one another?

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