Magna, UT -- U.S. Census Designated Place in Utah Population (2000): 22770 Housing Units (2000): 6799 Land area (2000): 7.426036 sq. miles (19.233344 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 7.426036 sq. miles (19.233344 sq. km) FIPS code: 47290 Located within: Utah (UT), FIPS 49 Location: 40.701579 N, 112.085874 W ZIP Codes (1990): 84044 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Magna, UT Magna