Larkspur, CO -- U.S. town in Colorado Population (2000): 234 Housing Units (2000): 94 Land area (2000): 1.348624 sq. miles (3.492920 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.348624 sq. miles (3.492920 sq. km) FIPS code: 43550 Located within: Colorado (CO), FIPS 08 Location: 39.227091 N, 104.884233 W ZIP Codes (1990): 80118 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Larkspur, CO Larkspur