
Marblemount
- County:
- Skagit County
- County Seat:
- No
- Area (mi²):
- 3.702
- State:
- Washington
Marblemount is a CDP located in Skagit County, Washington. Marblemount has a 2025 population of 197. Marblemount is currently declining at a rate of 0% annually and its population has increased by 62.81% since the most recent census, which recorded a population of 121 in 2020.
The average household income in Marblemount is $102,895 with a poverty rate of 0%. The median age in Marblemount is 54.5 years: 54.6 years for males, and 54.5 years for females.