allk12 · Rankings · Biggest declines · Washington · Okanogan County

The public schools with the biggest test-score declines in Okanogan County, Washington

Across Okanogan County, Washington, 21 public schools are ranked here, ranked by the 3-year drop in composite math + reading proficiency. Omak High School leads the list at -13.5pp, against a median of +2.0pp across the ranked schools.

The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.

Schools ranked

Okanogan County, Washington

Best 3-yr change

-13.5pp

Median 3-yr change

+2.0pp

BIGGEST DECLINES · OKANOGAN COUNTY, WASHINGTON

#	School	City	District	Students	3 yrs ago	Latest	Change
1	Omak High School	OMAK, WA	Omak School District	442	37.3%	23.8%	-13.5pp
2	Nespelem Elementary	NESPELEM, WA	Nespelem School District	131	19.5%	10.2%	-9.4pp
3	Tonasket High School	TONASKET, WA	Tonasket School District	280	40.7%	31.8%	-8.9pp
4	Oroville Elementary	Oroville, WA	Oroville School District	298	37.3%	32.1%	-5.2pp
5	Pateros Elementary	PATEROS, WA	Pateros School District	118	51.9%	47.0%	-5.0pp
6	Brewster High School	BREWSTER, WA	Brewster School District	339	34.2%	31.5%	-2.8pp
7	Lake Roosevelt Jr/Sr High School	COULEE DAM, WA	Grand Coulee Dam School District	308	19.6%	20.4%	+0.8pp
8	Okanogan Middle School	Okanogan, WA	Okanogan School District	238	35.8%	36.9%	+1.1pp
9	Brewster Middle School	BREWSTER, WA	Brewster School District	224	30.8%	32.4%	+1.6pp
10	Okanogan High School	Okanogan, WA	Okanogan School District	308	51.5%	53.1%	+1.6pp
11	Liberty Bell Jr Sr High	Winthrop, WA	Methow Valley School District	356	43.6%	45.5%	+2.0pp
12	Lake Roosevelt Elementary	Coulee Dam, WA	Grand Coulee Dam School District	354	19.0%	21.1%	+2.1pp
13	Omak Middle School	OMAK, WA	Omak School District	324	14.4%	17.5%	+3.1pp
14	Pateros High School	PATEROS, WA	Pateros School District	113	35.2%	38.9%	+3.7pp
15	Tonasket Middle School	TONASKET, WA	Tonasket School District	221	26.1%	30.1%	+3.9pp
16	Tonasket Elementary School	TONASKET, WA	Tonasket School District	476	27.3%	31.6%	+4.2pp
17	Grainger Elementary	Okanogan, WA	Okanogan School District	404	38.5%	43.0%	+4.5pp
18	Brewster Elementary School	BREWSTER, WA	Brewster School District	425	26.8%	31.6%	+4.8pp
19	E Omak Elementary	OMAK, WA	Omak School District	327	26.9%	37.3%	+10.4pp
20	Methow Valley Elementary	Winthrop, WA	Methow Valley School District	368	31.4%	48.4%	+17.1pp
21	Oroville Middle-High School	Oroville, WA	Oroville School District	243	22.8%	40.5%	+17.7pp

Page 1 of 1 · top 21 of 21 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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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.