Rock Island city, Washington
Official LSAD Designation: Rock Island city • Census GEOID: 5359180
• Douglas County
Rock Island city is an incorporated city in Douglas County, Washington. According to official records from the Census (2025), Rock Island city had an estimated population of 1,753 residents. Official Census Bureau geographic records classify this community under LSAD designation Rock Island city (GEOID 5359180).
Local Government Administration U.S. Census Bureau GMAF
City Of Rock Island City
Municipal
Official Title:
Mayor
Address:
PO BOX 99, ROCK ISLAND WA 98850-0099
County Of Douglas
County
Official Title:
Clerk Of The Board
Address:
PO BOX 747, WATERVILLE WA 98858-0747
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 1,753 | 2025 |
| Median Household Income | $69,861 | 2020-2024 |
| Median Home Value | $273,500 | 2020-2024 |
| Land Area | 1.13 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).