Exeter, IL -- U.S. village in Illinois Population (2000): 70 Housing Units (2000): 32 Land area (2000): 0.689653 sq. miles (1.786193 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.689653 sq. miles (1.786193 sq. km) FIPS code: 24699 Located within: Illinois (IL), FIPS 17 Location: 39.719091 N, 90.496028 W ZIP Codes (1990): 62621 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Exeter, IL Exeter