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Old Mill Creek

1. Old Mill Creek, Illinois, United States [Populated Place] is in Lake County; location is 42°25'19"N 87°58'21"W; elevation is 709 feet [SourceGSP]
2. Old Mill Creek, Illinois, United States [Village]; population was 73 in 1990; housing units was 31 in 1990; location is 42°26'N 87°59'W; land area is 5.92 square miles (3,786 acres); water area is 0.01 square miles (9 acres); FIPS code is 55639 [SourceCBP]