allk12 · Rankings · Lowest proficiency · Washington · Grant County

The lowest-performing public schools by test proficiency in Grant County, Washington

43 public schools in Grant County, Washington appear in this ranking of the lowest-performing public schools by test proficiency, ranked by the lowest composite state-assessment proficiency. Mattawa Elementary leads the list at 12.9%, against a median of 33.4% across the ranked schools.

Sort any column, filter to a school or district, or download the full ranking as a CSV. Source data is federal NCES and state assessment reporting, 2024-25.

Schools ranked

Grant County, Washington

Best % Proficient

12.9%

Median % Proficient

33.4%

LOWEST PROFICIENCY · GRANT COUNTY, WASHINGTON

#	School	City	District	Level	% FRL	Students	% Proficient
1	Mattawa Elementary	Mattawa, WA	Wahluke School District	Elementary	85.9%	199	12.9%
2	Soap Lake Middle & High School	SOAP LAKE, WA	Soap Lake School District	High	82.5%	263	15.3%
3	Endeavor Middle School	Moses Lake, WA	Moses Lake School District	Middle	82.6%	270	15.6%
4	Soap Lake Elementary	SOAP LAKE, WA	Soap Lake School District	Elementary	76.8%	328	16.5%
5	Morris Schott Elementary	Mattawa, WA	Wahluke School District	Elementary	92.4%	317	17.3%
6	George Elementary	QUINCY, WA	Quincy School District	Elementary	77.9%	163	18.9%
7	Larson Heights Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	80.1%	292	20.0%
8	Saddle Mountain Elementary	Mattawa, WA	Wahluke School District	Elementary	91.7%	470	21.0%
9	Warden Middle School	WARDEN, WA	Warden School District	Middle	81.9%	227	21.1%
10	Pioneer Elementary	QUINCY, WA	Quincy School District	Elementary	89.0%	291	21.4%
11	Wahluke Junior High	Mattawa, WA	Wahluke School District	Middle	94.9%	554	21.6%
12	Ancient Lakes Elementary	Quincy, WA	Quincy School District	Elementary	77.4%	385	24.2%
13	Monument Elementary	QUINCY, WA	Quincy School District	Elementary	73.7%	289	25.9%
14	Quincy Middle School	QUINCY, WA	Quincy School District	Middle	79.9%	717	26.4%
15	Midway Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	75.7%	222	27.4%
16	Frontier Middle School	MOSES LAKE, WA	Moses Lake School District	Middle	60.7%	690	29.1%
17	Warden Elementary	WARDEN, WA	Warden School District	Elementary	77.9%	416	29.4%
18	Wahluke High School	Mattawa, WA	Wahluke School District	High	92.4%	750	29.4%
19	Mountain View Elementary	QUINCY, WA	Quincy School District	Elementary	86.8%	280	31.3%
20	Quincy High School	QUINCY, WA	Quincy School District	High	78.5%	860	31.6%
21	North Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	84.8%	277	31.8%
22	Grant Elementary	EPHRATA, WA	Ephrata School District	Elementary	68.5%	466	33.4%
23	Ephrata High School	EPHRATA, WA	Ephrata School District	High	60.4%	886	33.8%
24	Royal Middle School	Royal City, WA	Royal School District	Middle	61.0%	282	34.0%
25	Lakeview Terrace Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	71.6%	303	34.1%
26	Vanguard Academy	Moses Lake, WA	Moses Lake School District	High	60.2%	387	34.2%
27	Knolls Vista Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	74.1%	282	34.5%
28	Moses Lake High School	MOSES LAKE, WA	Moses Lake School District	High	57.6%	1,856	35.9%
29	Warden High School	WARDEN, WA	Warden School District	High	77.2%	290	36.7%
30	Columbia Middle School	MOSES LAKE, WA	Moses Lake School District	Middle	58.9%	875	36.8%
31	Royal High School	Royal City, WA	Royal School District	High	57.4%	592	36.9%
32	Garden Heights Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	56.5%	324	37.5%
33	Peninsula Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	57.4%	383	37.5%
34	Royal Intermediate School	Royal City, WA	Royal School District	Middle	53.7%	382	38.0%
35	Longview Elementary	MOSES LAKE, WA	Moses Lake School District	Elementary	68.5%	368	42.4%
36	Ephrata Middle School	EPHRATA, WA	Ephrata School District	Middle	57.5%	461	42.9%
37	Park Orchard Elementary School	Moses Lake, WA	Moses Lake School District	Elementary	64.3%	454	42.9%
38	Columbia Ridge Elementary	EPHRATA, WA	Ephrata School District	Elementary	62.7%	480	43.3%
39	Parkway School	EPHRATA, WA	Ephrata School District	Middle	59.2%	407	45.8%
40	Vicki I. Groff Elementary School	Moses Lake, WA	Moses Lake School District	Elementary	48.9%	413	46.2%
41	Red Rock Elementary	Royal City, WA	Royal School District	Elementary	53.6%	513	47.6%
42	Sage Point Elementary School	Moses Lake, WA	Moses Lake School District	Elementary	40.7%	334	62.3%
43	Almira Coulee Hartline High School	Coulee City, WA	Coulee-Hartline School District	High	42.2%	102	63.3%

Page 1 of 1 · top 43 of 43 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

All schools in Grant County →

Lowest proficiency rankings at a wider scope

All Washington Nationwide

Other rankings for Grant County, Washington

Largest Most diverse Lowest ratio Highest proficiency Fastest growing Highest poverty Lowest poverty Highest ratio Fastest declining Most Hispanic Most Black Most White Most Asian

All ranking categories →

DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.