ZIP Code 98524
About Allyn
Allyn is a census-designated place (CDP) in Mason County, Washington, United States. The population was 2,194 as of the 2020 census. It was part of the former Allyn-Grapeview CDP that was broken up into Allyn and Grapeview in 2010. Allyn is located on the western shore of the North Bay region of the Case Inlet of Puget Sound. The area's main road and thoroughfare is State Route 3.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
4,585
population
$108,526
median household income
559
people / sq mi
$513,400
median home value
$2,667
median gross rent
50.8
median age
2,154
housing units
1,786
households
8.2
land area (sq mi)