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Mason County, WA's 2020→2024 swing set against its 2008-2024 trajectory and the parallel Washington statewide and national swings.
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Mason shifted 1.4 points left between 2020 and 2024 to land at R+2.5, the third straight cycle of Democratic gains since the county broke 12.8 points right in a single cycle in 2012→2016. Even after that recovery, Mason sits 21.7 points to the right of WA-6, the congressional district that contains it and which ran D+19.2 in 2024 — the parent-district divergence is the real read on the trajectory. The county is 83.7% non-Hispanic white with median household income of $39,586 and 15.6% bachelor's attainment, a profile that anchors why the 2016 break stuck even as the margin has slowly compressed.
Headline numbers at a glance
Mason County voted R+2.5 in 2024, a 1.4-point leftward move from R+3.9 in 2020. Turnout came in at 36.3%, with a lean score of R+3.3 anchoring the county just right of even.
Where the answer lives
Mason in Washington, drawn against the state outline.
Cycle-by-cycle arc
Shifted 11.1 pts left across 16 years.
Population, income, education
Mason County is 88.5% white (83.7% non-Hispanic white) across 49,000 people, with 4.8% Hispanic and 1.1% Asian shares. Median household income sits at $39,586 and 15.6% of adults hold a bachelor's degree, with 12.2% in poverty and 4.4% foreign-born. The lower-income, lower-credential profile is consistent with the rightward trajectory shown in the trend section.
Against county, state, and national
| Geography | 2016 | 2020 | 2024 | Change since 2016 |
|---|---|---|---|---|
| Mason | R+5.8 | R+3.9 | R+2.5 | -11.1 pts |
| Washington | D+15.7 | D+19.2 | D+18.2 | +2.5 pts |
| WA-6 | D+11.9 | D+17.1 | D+19.2 | +7.3 pts |
| United States | D+2.1 | D+4.5 | R+1.4 | -3.5 pts |
Akashic Atlas, "Mason County, WA's 2020→2024 swing set against its 2008-2024 trajectory and the parallel Washington statewide and national swings", answer ID -SGTLd0Zk3RR, generated 2026-04-28, retrieved 2026-04-29. https://akashicedge.com/atlas/a/-SGTLd0Zk3RR
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