For the 2026 school year, there are 7 public high schools serving 1,547 students in Grant County, OR.
The top-ranked public high schools in Grant County, OR are Grant Union Junior/senior High School, Long Creek School and Dayville School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Grant County, OR public high schools have an average math proficiency score of 33% (versus the Oregon public high school average of 24%), and reading proficiency score of 47% (versus the 48% statewide average). High schools in Grant County have an average ranking of 8/10, which is in the top 30% of Oregon public high schools.
Grant County, OR public high school have a Graduation Rate of 60%, which is less than the Oregon average of 82%.
The school with highest graduation rate is Grant Union Junior/senior High School, with ≥80% graduation rate. Read more about public school graduation rate statistics in Oregon or national school graduation rate statistics.
Minority enrollment is 27% of the student body (majority Hispanic), which is less than the Oregon public high school average of 41% (majority Hispanic).
Best Public High Schools in Grant County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Grant Union Junior/senior High School
(Math: 40-44% | Reading: 55-59%)
Rank:
Rank:
9/
Top 20%10
911 S Canyon Blvd
John Day, OR 97845
(541) 575-1799
John Day, OR 97845
(541) 575-1799
Gr: 7-12 | 204 students Student-teacher ratio: 11:1 Minority enrollment: 11%
Rank: #22.
Long Creek School
(Math: <50% | Reading: ≥50%)
Rank:
Rank:
8/
Top 30%10
375 E Main
Long Creek, OR 97856
(541) 508-9164
Long Creek, OR 97856
(541) 508-9164
Gr: PK-12 | 19 students Student-teacher ratio: 4:1 Minority enrollment: 37%
Rank: #33.
Dayville School
(Math: 21-39% | Reading: 60-79%)
Rank:
Rank:
8/
Top 30%10
285 School House Rd
Dayville, OR 97825
(541) 987-2412
Dayville, OR 97825
(541) 987-2412
Gr: PK-12 | 46 students Student-teacher ratio: 7:1 Minority enrollment: 15%
Rank: #44.
Oregon Connections Academy
Charter School
(Math: 35% | Reading: 48%)
Rank:
Rank:
7/
Top 50%10
740 S Overholt Ave
Prairie City, OR 97869
(541) 820-3314
Prairie City, OR 97869
(541) 820-3314
Gr: K-12 | 942 students Student-teacher ratio: 24:1 Minority enrollment: 35%
Rank: #55.
Prairie City School
(Math: 20-24% | Reading: 30-34%)
Rank:
Rank:
3/
Bottom 50%10
740 Overholt St
Prairie City, OR 97869
(541) 820-3314
Prairie City, OR 97869
(541) 820-3314
Gr: K-12 | 245 students Student-teacher ratio: 11:1 Minority enrollment: 8%
Rank: #66.
Monument School
(Math: ≤10% | Reading: 21-39%)
Rank:
Rank:
1/
Bottom 50%10
127 North St
Monument, OR 97864
(541) 934-2646
Monument, OR 97864
(541) 934-2646
Gr: K-12 | 54 students Student-teacher ratio: 8:1 Minority enrollment: 19%
Rank: n/an/a
Virtual Preparatory Academy Of Oregon
Charter School
740 S Overholt St
Prairie City, OR 97869
(541) 304-2202
Prairie City, OR 97869
(541) 304-2202
Gr: K-12 | 37 students Student-teacher ratio: 6:1 Minority enrollment: 46%
Grant County Public Schools (Closed)
School
Location
Quick Facts
Blue Mountain Alternative High School (Closed 2013)
Alternative School
116 Nw Bridge St 8
John Day, OR 97845
(541) 575-4244
John Day, OR 97845
(541) 575-4244
Gr: 7-12 | 15 students Student-teacher ratio: 15:1 Minority enrollment: 33%
350 School Ln
Mount Vernon, OR 97865
(541) 932-4733
Mount Vernon, OR 97865
(541) 932-4733
Gr: 6-8 | 127 students Student-teacher ratio: 13:1 Minority enrollment: 13%
Frequently Asked Questions
What are the top-ranked public high schools in Grant County, OR?
The top-ranked public high schools in Grant County, OR include Grant Union Junior/senior High School, Long Creek School and Dayville School.
How many public high schools are located in Grant County?
7 public high schools are located in Grant County.
What is the racial composition of students in Grant County?
Grant County public high schools minority enrollment is 27% of the student body (majority Hispanic), which is less than the Oregon public high schools average of 41% (majority Hispanic).
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