Rock Island, WA ZIP Codes, Coordinates & Counties
Rock Island, Washington has 1 ZIP code in Douglas county. The approximate center of Rock Island is 47.308, -120.078. Rock Island has about 14,381 known street addresses.
ZIP codes in Rock Island, WA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 98850 | Douglas | 47.308 | -120.078 |
Counties Rock Island spans
Douglas
Most common streets in Rock Island
Riverside, Douglas, Center, Penn, Hammond, 2nd, Garden, Sunrise, Laurel, 1st
Frequently asked questions
What ZIP codes are in Rock Island, WA?
Rock Island, Washington has 1 ZIP code, ranging from 98850 to 98850. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Rock Island, WA in?
Rock Island is in Douglas county.
What are the latitude and longitude of Rock Island, WA?
The approximate center of Rock Island, Washington is latitude 47.308, longitude -120.078. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Rock Island, WA have?
Rock Island has 1 ZIP code.
How many addresses are in Rock Island, WA?
Rock Island, Washington has about 14,381 known street addresses in the sthan.io US address database.
What are the most common streets in Rock Island, WA?
Some of the most common street names in Rock Island are Riverside, Douglas, Center, Penn, Hammond, 2nd.
What cities are near Rock Island, WA?
Cities near Rock Island include Malaga (5 mi), Palisades (10 mi), East Wenatchee (13 mi), Quincy (14 mi), Wenatchee (15 mi).
Cities near Rock Island
Malaga, WA (5 mi) Palisades, WA (10 mi) East Wenatchee, WA (13 mi) Quincy, WA (14 mi) Wenatchee, WA (15 mi) George, WA (19 mi) Monitor, WA (20 mi) Ephrata, WA (21 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database