For the 2026 school year, there are 15 public middle schools serving 4,167 students in Grant County, WA.
The top-ranked public middle schools in Grant County, WA are Ephrata Middle School, Sentinel Tech Alt School and Royal Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Grant County, WA public middle schools have an average math proficiency score of 25% (versus the Washington public middle school average of 37%), and reading proficiency score of 36% (versus the 51% statewide average). Middle schools in Grant County have an average ranking of 2/10, which is in the bottom 50% of Washington public middle schools.
Minority enrollment is 64% of the student body (majority Hispanic), which is more than the Washington public middle school average of 50% (majority Hispanic).
Best Public Middle Schools in Grant County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Ephrata Middle School
(Math: 42% | Reading: 55%)
Rank:
Rank:
6/
Top 50%10
384 A St Se
Ephrata, WA 98823
(509) 754-4659
Ephrata, WA 98823
(509) 754-4659
Gr: 7-8 | 461 students Student-teacher ratio: 21:1 Minority enrollment: 49%
Rank: #22.
Sentinel Tech Alt School
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
4/
Bottom 50%10
20140 Rd 24 Sw
Mattawa, WA 99349
(509) 932-4565
Mattawa, WA 99349
(509) 932-4565
Gr: 6-12 | 36 students Student-teacher ratio: 36:1 Minority enrollment: 97%
Rank: #33.
Royal Middle School
(Math: 24% | Reading: 47%)
Rank:
Rank:
3/
Bottom 50%10
921 Ahlers Ave N
Royal City, WA 99357
(509) 346-2268
Royal City, WA 99357
(509) 346-2268
Gr: 7-8 | 282 students Student-teacher ratio: 20:1 Minority enrollment: 80%
Rank: #44.
Columbia Middle School
(Math: 30% | Reading: 41%)
Rank:
Rank:
3/
Bottom 50%10
1111 E Nelson Road
Moses Lake, WA 98837
(509) 766-2661
Moses Lake, WA 98837
(509) 766-2661
Gr: 6-8 | 875 students Student-teacher ratio: 21:1 Minority enrollment: 55%
Rank: #55.
Digital Learning Center
(Math: 10-14% | Reading: 40-59%)
Rank:
Rank:
2/
Bottom 50%10
1530 Pilgrim Street
Moses Lake, WA 98837
(509) 766-2650
Moses Lake, WA 98837
(509) 766-2650
Gr: 6-12 | 359 students Student-teacher ratio: 30:1 Minority enrollment: 58%
Rank: #66.
Quincy Innovation Academy
Alternative School
(Math: ≤10% | Reading: 40-59%)
Rank:
Rank:
2/
Bottom 50%10
1804 13th Ave Sw
Quincy, WA 98848
(509) 787-1678
Quincy, WA 98848
(509) 787-1678
Gr: K-12 | 153 students Student-teacher ratio: 51:1 Minority enrollment: 90%
Rank: #77.
Wilson Creek High School
(Math: 21-39% | Reading: 21-39%)
Rank:
Rank:
2/
Bottom 50%10
400 Navar Street
Wilson Creek, WA 98860
(509) 345-2541
Wilson Creek, WA 98860
(509) 345-2541
Gr: 7-12 | 58 students Student-teacher ratio: 7:1 Minority enrollment: 24%
Rank: #88.
Quincy Middle School
(Math: 22% | Reading: 35%)
Rank:
Rank:
2/
Bottom 50%10
16 Sixth Ave Se
Quincy, WA 98848
(509) 787-4435
Quincy, WA 98848
(509) 787-4435
Gr: 6-8 | 717 students Student-teacher ratio: 16:1 Minority enrollment: 91%
Rank: #99.
Frontier Middle School
(Math: 23% | Reading: 34%)
Rank:
Rank:
2/
Bottom 50%10
517 West Third Avenue
Moses Lake, WA 98837
(509) 766-2662
Moses Lake, WA 98837
(509) 766-2662
Gr: 6-8 | 690 students Student-teacher ratio: 20:1 Minority enrollment: 58%
Rank: #1010.
Warden Middle School
(Math: 18% | Reading: 35%)
Rank:
Rank:
2/
Bottom 50%10
101 W Beck Way
Warden, WA 98857
(509) 349-2902
Warden, WA 98857
(509) 349-2902
Gr: 6-8 | 227 students Student-teacher ratio: 17:1 Minority enrollment: 81%
Rank: #1111.
Quincy Innovation Academy Big Picture
(Math: ≤20% | Reading: 21-39%)
Rank:
Rank:
1/
Bottom 50%10
1804 13th Ave Sw
Quincy, WA 98848
(509) 787-1678
Quincy, WA 98848
(509) 787-1678
Gr: 6-12 | 24 students Student-teacher ratio: 24:1 Minority enrollment: 37%
Rank: #1212.
Wahluke Junior High School
(Math: 23% | Reading: 23%)
Rank:
Rank:
1/
Bottom 50%10
502 N. Boundary
Mattawa, WA 99349
(509) 932-4455
Mattawa, WA 99349
(509) 932-4455
Gr: 6-8 | 554 students Student-teacher ratio: 17:1 Minority enrollment: 99%
Rank: #1313.
Soap Lake Middle & High School
(Math: 6-9% | Reading: 25-29%)
Rank:
Rank:
1/
Bottom 50%10
527 2nd Ave Sw
Soap Lake, WA 98851
(509) 246-1201
Soap Lake, WA 98851
(509) 246-1201
Gr: 7-12 | 263 students Student-teacher ratio: 19:1 Minority enrollment: 46%
Rank: #1414.
Endeavor Middle School
Magnet School
(Math: 13% | Reading: 17%)
Rank:
Rank:
1/
Bottom 50%10
6527 Patton Blvd
Moses Lake, WA 98837
(509) 766-2690
Moses Lake, WA 98837
(509) 766-2690
Gr: 6-8 | 270 students Student-teacher ratio: 23:1 Minority enrollment: 69%
Frequently Asked Questions
What are the top-ranked public middle schools in Grant County, WA?
The top-ranked public middle schools in Grant County, WA include Ephrata Middle School, Sentinel Tech Alt School and Royal Middle School.
How many public middle schools are located in Grant County?
13 public middle schools are located in Grant County.
What is the racial composition of students in Grant County?
Grant County public middle schools minority enrollment is 64% of the student body (majority Hispanic), which is more than the Washington public middle schools average of 50% (majority Hispanic).
Which public middle schools in Grant County are often viewed compared to one another?
Popular comparisons of public middle schools in Grant County include: Frontier Middle School vs. Columbia Middle School, Columbia Middle School vs. Frontier Middle School, Frontier Middle School vs. Ephrata Middle School
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