Island County, Washington
Island County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 86,478 (2024)
ID: 176797
|
County | Official County Government |
Contact: CHAIRMAN
PO BOX 5000, COUPEVILLE WA 98239-5000
|
|
GUS Population: 24,163 (2024)
ID: 114622
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
865 SE BARRINGTON DR, OAK HARBOR WA 98277-3257
|
|
GUS Population: 1,935 (2024)
ID: 176830
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 725, COUPEVILLE WA 98239-0725
|
|
GUS Population: 1,139 (2024)
ID: 176831
|
Municipal | Municipal Government Within County |
Contact: DIRECTOR OF FINANCE
PO BOX 366, LANGLEY WA 98260-0366
|