
Deep River
- County:
- Pacific County
- County Seat:
- No
- Area (mi²):
- 13.276
- State:
- Washington
Deep River is a CDP located in Pacific County, Washington. Deep River has a 2025 population of 148. Deep River is currently declining at a rate of -2.63% annually and its population has decreased by -12.43% since the most recent census, which recorded a population of 169 in 2020.
The average household income in Deep River is $84,891 with a poverty rate of 14.43%. The median age in Deep River is 63.2 years: 63.1 years for males, and 63.4 years for females.