Rock Island Washington Area Code
One area code covers Rock Island: 509.
The code covering Rock Island
| Area code | Primarily serves | In service |
|---|---|---|
| 509 | Spokane | 1956 |
Scope the codes matched to Rock Island. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
Rock Island has a single code, so there is nothing to divide — every local line carries 509.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Rock Island’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
Rock Island Washington ZIP codes →
Nearby places with different codes
These are the closest places to Rock Island whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Leavenworth Washington area codes | 29 mi | 206, 360, 509, 564 |
| Skykomish Washington area codes | 61 mi | 206, 360, 564 |
| Index Washington area codes | 73 mi | 206, 360, 564 |
| North Bend Washington area codes | 76 mi | 425 |
| Gold Bar Washington area codes | 80 mi | 206, 360, 564 |
| Snoqualmie Washington area codes | 82 mi | 425 |
| Carnation Washington area codes | 84 mi | 425 |
| Sultan Washington area codes | 85 mi | 206, 360, 564 |
Straight-line distance between place reference points, not driving distance.