Dayton, Washington
Dayton is a city in Columbia County, Washington, with an estimated population of 2,510 in 2023. It sits at 46.3168, -117.9768 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| Place name | Dayton |
| Type | city |
| State | Washington (WA) |
| County | Columbia County |
| Population (2023 est.) | 2,510 |
| Land area | 1.44 sq mi (3.73 km²) |
| Coordinates | 46.3168, -117.9768 |
| Time zone | America/Los_Angeles |
| ZIP codes | 99328 |
ZIP codes and area codes for Dayton
Dayton covers 1 ZIP code: 99328. Browse all ZIP codes in Washington for the full list.
Where is Dayton?
Dayton is located in Washington, in Columbia County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Waitsburg 14 km · WAPrescott 26 km · WAPomeroy 34 km · WAWalla Walla 39 km · WACollege Place 44 km · WAMilton-Freewater 53 km · ORLaCrosse 53 km · WA
Frequently asked questions
What county is Dayton, WA in?
Dayton is in Columbia County, Washington.
What is the population of Dayton, WA?
The 2023 Census Bureau estimate is 2,510.
What time zone is Dayton in?
Dayton is in the America/Los_Angeles time zone.