allk12 · Rankings · Biggest declines · Washington · Mason County

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

16 public schools in Mason County, Washington appear in this ranking of the public schools with the biggest test-score declines, ranked by the 3-year drop in composite math + reading proficiency. Pioneer Middle School leads the list at -10.4pp, against a median of +1.1pp 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

Mason County, Washington

Best 3-yr change

-10.4pp

Median 3-yr change

+1.1pp

BIGGEST DECLINES · MASON COUNTY, WASHINGTON

#	School	City	District	Students	3 yrs ago	Latest	Change
1	Pioneer Middle School	SHELTON, WA	Pioneer School District	250	26.7%	16.3%	-10.4pp
2	Grapeview Elementary & Middle School	Grapeview, WA	Grapeview School District	224	51.1%	46.3%	-4.8pp
3	Oakland Bay Junior High School	Shelton, WA	Shelton School District	544	26.0%	21.8%	-4.2pp
4	Mountain View Elementary	Shelton, WA	Shelton School District	671	35.1%	32.1%	-3.1pp
5	Mary M. Knight School	Elma, WA	Mary M Knight School District	184	29.2%	26.7%	-2.5pp
6	Olympic Middle School	Shelton, WA	Shelton School District	601	22.9%	22.0%	-0.9pp
7	Sand Hill Elementary	Belfair, WA	North Mason School District	537	28.2%	27.6%	-0.6pp
8	Hawkins Middle School	Belfair, WA	North Mason School District	485	28.2%	29.2%	+1.0pp
9	Southside Elementary	Shelton, WA	Southside School District	208	44.5%	45.6%	+1.1pp
10	Shelton High School	Shelton, WA	Shelton School District	1,455	33.0%	34.6%	+1.6pp
11	Pioneer Elementary School	SHELTON, WA	Pioneer School District	482	21.4%	24.4%	+3.0pp
12	Belfair Elementary	Belfair, WA	North Mason School District	392	34.2%	37.6%	+3.4pp
13	North Mason Senior High School	Belfair, WA	North Mason School District	735	29.9%	34.1%	+4.2pp
14	Evergreen Elementary School	Shelton, WA	Shelton School District	378	11.7%	16.2%	+4.5pp
15	Hood Canal Elementary School	Shelton, WA	Hood Canal School District	337	24.5%	29.8%	+5.3pp
16	Bordeaux Elementary School	Shelton, WA	Shelton School District	528	36.3%	45.3%	+9.0pp

Page 1 of 1 · top 16 of 16 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.