Dayton, IN -- U.S. town in Indiana Population (2000): 1120 Housing Units (2000): 430 Land area (2000): 1.037769 sq. miles (2.687809 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.037769 sq. miles (2.687809 sq. km) FIPS code: 17002 Located within: Indiana (IN), FIPS 18 Location: 40.374579 N, 86.769379 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Dayton, IN Dayton