Kelso, WA ZIP Codes, Coordinates & Counties
Kelso, Washington has 1 ZIP code in Cowlitz county. The approximate center of Kelso is 46.155, -122.786. Kelso has about 140,383 known street addresses.
ZIP codes in Kelso, WA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 98626 | Cowlitz | 46.155 | -122.786 |
Counties Kelso spans
Cowlitz
Most common streets in Kelso
3rd, 4th, 7th, 5th, 6th, 8th, 1st, Allen, 9th, 10th
Frequently asked questions
What ZIP codes are in Kelso, WA?
Kelso, Washington has 1 ZIP code, ranging from 98626 to 98626. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Kelso, WA in?
Kelso is in Cowlitz county.
What are the latitude and longitude of Kelso, WA?
The approximate center of Kelso, Washington is latitude 46.155, longitude -122.786. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Kelso, WA have?
Kelso has 1 ZIP code.
How many addresses are in Kelso, WA?
Kelso, Washington has about 140,383 known street addresses in the sthan.io US address database.
What are the most common streets in Kelso, WA?
Some of the most common street names in Kelso are 3rd, 4th, 7th, 5th, 6th, 8th.
What cities are near Kelso, WA?
Cities near Kelso include Kalama (8 mi), Rainier (12 mi), Castle Rock (12 mi), Silverlake (12 mi), Longview (14 mi).
Cities near Kelso
Kalama, WA (8 mi) Rainier, OR (12 mi) Castle Rock, WA (12 mi) Silverlake, WA (12 mi) Longview, WA (14 mi) Deer Island, OR (16 mi) Woodland, WA (16 mi) Toutle, WA (16 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database