Fillmore, UT -- U.S. city in Utah Population (2000): 2253 Housing Units (2000): 823 Land area (2000): 5.767312 sq. miles (14.937269 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 5.767312 sq. miles (14.937269 sq. km) FIPS code: 25510 Located within: Utah (UT), FIPS 49 Location: 38.967642 N, 112.330698 W ZIP Codes (1990): 84631 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Fillmore, UT Fillmore