Total enrollment
8,539
+203 (+2%) vs SY 2017-18
Mason County
Washington · Public K-12
Across all districts in Mason County, public schools number 26 and enroll approximately 8,539 K-12 students (10 elementary, 4 middle, and 8 high).
7-year change in Mason County
SY 2017-18 vs SY 2024-25School count
23
+4 (+21%) vs SY 2017-18
% White
54%
was 63%
% Hispanic
34%
was 25%
% Black
1%
was 1%
% Asian
1%
was 1%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
26
8 districts
Enrollment
8,539
NCES CCD
Median income
$83,270
Above Washington avg
Free/reduced lunch
62.6%
Above Washington avg
Elementary
10
3,811 students
Middle
4
1,880 students
High
8
2,591 students
Combined / other
4
257 students
LARGEST DISTRICT
Shelton School District
4,517 students · 8 districts in Mason County
County vs. school enrollment demographics
Left bar is the racial makeup of Mason County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
21.9%
adults 25+
Poverty rate
7.5%
ACS 5-year
Unemployment
6.6%
civilian labor
Median age
45
19.5% under 18
Test scores in Mason County
Latest 2024-25 ELA proficiency, 16 schools ranked. Washington state average: 58.4%.
Top 5 schools (ELA)
- Shelton High School· 53.1%
- North Mason Senior High School· 50.0%
- Bordeaux Elementary School· 49.5%
- Grapeview Elementary & Middle School· 48.3%
- Southside Elementary· 46.0%
Lowest 5 schools (ELA)
- Evergreen Elementary School· 21.4%
- Pioneer Middle School· 22.4%
- Oakland Bay Junior High School· 27.0%
- Olympic Middle School· 27.6%
- Pioneer Elementary School· 28.1%
Cities in Mason County
About Mason County
Across the average-sized Washington county of Mason County of about 67,982 residents, the public-school footprint covers 26 schools and about 8,539 students.
Zooming out, census numbers show the median household earns about $83,270 a year, roughly 22% of adults have completed at least a four-year degree, and roughly 8% of residents live below the federal poverty line. That income level is 5% meaningfully above the Washington median.
Looking at the level breakdown, Mason County is made up of 10 elementary schools (3,811 students), 4 middle schools (1,880), 8 high schools (2,591), and 4 combined or other schools.
Shelton School District dominates the local landscape, accounting for roughly 4,517 students on its own.
Five-year track record. Across the same 7-year window, public-school enrollment stayed largely flat: 8,336 students in SY 2017-18 versus 8,539 in SY 2024-25. Mason County now counts 23 public schools, up from 19 in SY 2017-18. The White share of public-school enrollment fell from 63% to 54%.
In the discussion threads here, the community for Mason County discusses enrollment trends, district policy changes, and bus-route updates. Members of the local community share what they see day-to-day.
Frequently asked questions
Mason County school rankings
DATA · Census ACS 5-year · NCES Common Core of Data