
Basalt
- County:
- Eagle County
- County Seat:
- No
- Area (mi²):
- 2.023
- State:
- Colorado
Basalt is a town located in Eagle County, Colorado. Basalt has a 2025 population of 4,018. Basalt is currently growing at a rate of 0.17% annually and its population has increased by 0.83% since the most recent census, which recorded a population of 3,985 in 2020.
The average household income in Basalt is $140,874 with a poverty rate of 4.23%. The median age in Basalt is 43.6 years: 43.6 years for males, and 43.3 years for females.