Illinois City, Illinois

Illinois City is an unincorporated community in the U.S. state of Illinois, across the Mississippi River from Muscatine, Iowa.^[2] It straddles Buffalo Prairie Township and Drury Township in Rock Island County, Illinois.^[3]

Illinois City, Illinois
Unincorporated community
Illinois City, Illinois Show map of Illinois Illinois City, Illinois Show map of the United States
Coordinates: 41°23′51″N 90°53′59″W
Country	United States
State	Illinois
County	Rock Island
Area [1]
• Total	0.46 sq mi (1.18 km2)
• Land	0.46 sq mi (1.18 km2)
• Water	0.00 sq mi (0.00 km2)
Elevation	764 ft (233 m)
Population  (2020)
• Total	159
• Density	347.92/sq mi (134.44/km2)
Time zone	UTC-6 (Central (CST))
• Summer (DST)	UTC-5 (CDT)
ZIP code	61259
Area code	309
GNIS feature ID	410764[2]

As of 2014^[update], a United States Post Office, ZIP Code 61259,^[4] remains open at 23828 124th Avenue West.

Demographics

Historical population

Census	Pop.	Note	%±
2020	159		—
U.S. Decennial Census[5]

Illinois City first appeared as a census designated place in the 2020 U.S. Census.^[6]