Layton, UT -- U.S. city in Utah Population (2000): 58474 Housing Units (2000): 19145 Land area (2000): 20.706723 sq. miles (53.630163 sq. km) Water area (2000): 0.132595 sq. miles (0.343419 sq. km) Total area (2000): 20.839318 sq. miles (53.973582 sq. km) FIPS code: 43660 Located within: Utah (UT), FIPS 49 Location: 41.077919 N, 111.955328 W ZIP Codes (1990): 84040 84041 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Layton, UT Layton