Ava, IL -- U.S. city in Illinois Population (2000): 662 Housing Units (2000): 319 Land area (2000): 1.064237 sq. miles (2.756360 sq. km) Water area (2000): 0.005778 sq. miles (0.014964 sq. km) Total area (2000): 1.070015 sq. miles (2.771324 sq. km) FIPS code: 03103 Located within: Illinois (IL), FIPS 17 Location: 37.889346 N, 89.496355 W ZIP Codes (1990): 62907 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ava, IL Ava