Maryville, IL -- U.S. village in Illinois Population (2000): 4651 Housing Units (2000): 1816 Land area (2000): 4.667390 sq. miles (12.088483 sq. km) Water area (2000): 0.031689 sq. miles (0.082075 sq. km) Total area (2000): 4.699079 sq. miles (12.170558 sq. km) FIPS code: 47397 Located within: Illinois (IL), FIPS 17 Location: 38.725298 N, 89.957674 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Maryville, IL Maryville