Basalt, CO -- U.S. town in Colorado Population (2000): 2681 Housing Units (2000): 1218 Land area (2000): 1.922180 sq. miles (4.978423 sq. km) Water area (2000): 0.018520 sq. miles (0.047967 sq. km) Total area (2000): 1.940700 sq. miles (5.026390 sq. km) FIPS code: 04935 Located within: Colorado (CO), FIPS 08 Location: 39.368382 N, 107.038263 W ZIP Codes (1990): 81621 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Basalt, CO Basalt