Mason County, Washington
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Question 1 of 8
What should I know about this county?
About Mason County
Mason County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 65,726. The county seat and only incorporated city is Shelton. The county was formed out of Thurston County on March 13, 1854. Originally named Sawamish County, it took its present name in 1864 in honor of Charles H. Mason, the first Secretary of Washington Territory.
Description adapted from Wikipedia, CC BY-SA 4.0.
Question 2 of 8
What is this county like?
Mason County at a glance
- County seat
- Shelton
- Population
- 65,726 (2020)
- Land area
- 1,051 sq mi
- Founded
- 1854
Question 3 of 8
Where do people live here?
Largest communities in Mason County
- Shelton county seat10,371
- Belfair4,279
- Allyn-Grapeview2,917
- Allyn2,194
- Grapeview991
Question 4 of 8
How did this county come to be?
History of Mason County
Mason County comprises the Shelton micropolitan statistical area and is included in the Seattle-Tacoma combined statistical area.
Adapted from Wikipedia, CC BY-SA 4.0.
Question 5 of 8
Am I registered here?
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Confirm you're ready to vote in Mason County
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Step 1
Run a guided check
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Step 2
Ask Mason County directly
Your county election office handles registration, mail ballots, and polling places.
Question 6 of 8
Who runs elections in this county?
Official channels
Mason County election resources
Statewide tools and every Washington resource in one place: the Washington page at Scan Check Protect →
Question 7 of 8
Who are this county's neighbors?
Neighboring counties
Question 8 of 8
Who made this site?
Part of Washington Voter Check
This is the Mason County page of Washington Voter Check, a project of True the Vote, pointing Washington voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Mason County or the Washington Secretary of State publishes, they are right and this page is not.