| Alderton, Washington | |
|---|---|
| — CDP — | |
| Country | United States |
| State | Washington |
| County | Pierce |
| Population (2010) | |
| • Total | 2,893 |
| Time zone | Pacific (PST) (UTC-8) |
| • Summer (DST) | PDT (UTC-7) |
| ZIP code | 98374 |
| Area code(s) | 360 |
| FIPS code | |
Alderton is a census-designated place (CDP) in Pierce County, Washington, United States. The population was 2,893 at the 2010 census. The community is located in the Puyallup River Valley between the cities of Sumner and Orting.