Palmyra, MO -- U.S. city in Missouri Population (2000): 3467 Housing Units (2000): 1522 Land area (2000): 2.222617 sq. miles (5.756552 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.222617 sq. miles (5.756552 sq. km) FIPS code: 56036 Located within: Missouri (MO), FIPS 29 Location: 39.797396 N, 91.524857 W ZIP Codes (1990): 63461 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Palmyra, MO Palmyra