- Elma
- Elmer City
- Elmers Mobile Home Park
- Eltopia
- Elwha
- Elwood
- Emden
- Emerald
- Emerald Crest Mobile Home Park
- Emerald Hills Estates Mobile Home Park
- Emerald Island
- Empire View Mobile Home Park
- Enchanted Firs Mobile Home Park
- Enchanted Island
- Endicott
- Enetai
- English
- Ennis
- Enterprise
- Enterprise
- Entiat
- Enumclaw
- Ephrata
- Equality
- Erickson Island
- Ericson View Tracts
- Erlands Point
- Erlands Point-Kitsap Lake
- Ernies Grove
- Eschbach