RANK #579 / 1001 NAT · #6 / 21 WA · POP 67,982
1YR FORECAST: +0.0%
5YR OUTLOOK: +27%
Mason County, Washington, distinguishes itself with its extensive natural beauty, particularly the Hood Canal, a natural fjord offering opportunities for kayaking, fishing, and oyster picking. The county seat, Shelton, is the only incorporated city, with other notable communities including Belfair, Allyn, and Union. Located in western Washington, it is bordered by Kitsap, Thurston, and Grays Harbor counties, with the Olympic National Forest to its west. While many residents commute to nearby cities like Olympia and Tacoma, Mason Transit Authority provides bus services within the county and connections to regional transit hubs. The community offers a rural feel with abundant outdoor recreation, including over 270 miles of trails in the Olympic National Forest, numerous parks, and access to Puget Sound's shoreline.
Life in Mason County offers a blend of small-town living and access to natural amenities. The local economy, historically rooted in timber, has diversified to include aquaculture, healthcare, and technology. The Squaxin Island Tribe is a significant employer, operating various businesses. Recent economic developments include major investments in data centers, with projects underway that could bring new jobs and infrastructure to the area. The county also supports agriculture, including organic farming and Christmas tree cultivation, alongside tribal fisheries. Public schools serve the majority of K-12 students, with districts like Shelton School District being the largest.
Mason County's data profile doesn't fit any single market profile cleanly — its housing, labor, and demographic signals pull in different directions (home prices +0.1% YoY, population +1.5%, wages +6.1%). About 414 U.S. counties show this kind of mixed-signal pattern.
See all 414 Idiosyncratic Markets counties →Overvalued relative to economy
Well below national median
Prices detached from rents
Housing looks overvalued at 30.2x — home prices are high relative to local economic output. Climate and geography support a structural premium. The typical U.S. county is 4–6x.
Estimated local headcount ranges. Larger employers shown as floor + "+"; smaller employers show exact counts where reported.
Bars show trailing 12-month growth. The dashed Forecast bars are the model's next-12-month projection; the whisker marks the ±1% range (cooling–accelerating).
Source: Redfin · Census BPS — Browse sales on Redfin →
Source: CDC/NCHS vital statistics via County Health Rankings (2020–2022 avg). Rates per 100,000 population. Grade based on homicide rate relative to national average (~6.3). Learn more →
Source: EPA Air Quality System (2021–2023). Grade based on 3-year average median AQI. Learn about AQI →
| PROJECT | AMOUNT | STATUS |
|---|---|---|
|
Monarch Compute Campus (AI Data Center)
Nscale (in collaboration with Microsoft)
|
$500M | Proposed |
Source: public records, news, corporate announcements. Amounts are estimates where noted.
Bars show percentile rank among all 1001 counties.
Mason County scores 42/100 on the Boom Town Index, landing in the middle of the pack among 1001 U.S. counties (#579). Median household income is $83,270 and job growth is running at +1.7%. The data points to a county with mixed signals — some positive indicators alongside areas that lag faster-growing peers.
Mason County leans toward the expensive side. A median home value of $411,800 against an income-to-home-value ratio of 0.20 means housing eats a bigger share of local earnings than the national norm. Renters face $1,285/month on average.
Mason County is growing on multiple fronts. Population is up +1.5% year-over-year while employers added jobs at a +1.7% clip. Home values shifted +0.1% in the past year.
In significant numbers — 5.96% of Mason County's current population relocated from another state, well above the national norm. That level of in-migration usually signals a county where jobs, affordability, or quality of life are pulling people in from elsewhere.