Illinois City
Census-designated place in Rock Island County, Illinois

Illinois City is an unincorporated community (census-designated place) in Rock Island County, Illinois, with 159 residents (2020 Census). It sits at 764 ft (233 m) above sea level. The nearest town is Fairport, 3.1 miles NW.
- 159residents (2020 Census)
- 764 ftelevation · 233 m
- 0.5 sq miland area · 1.2 km²
- 348 / sq mipopulation density
- 61259ZIP code
About Illinois City
Illinois City is an unincorporated community in the U.S. state of Illinois, across the Mississippi River from Muscatine, Iowa. The community straddles Buffalo Prairie Township and Drury Township in Rock Island County, Illinois. As of the 2020 census, Illinois City had a population of 159.
Text: Wikipedia · CC BY-SA 4.0
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Open in Google Maps ›Illinois City, IL population
Illinois City had 159 residents in the 2020 Census.
| 2020 Census | 159 |
|---|---|
| Density | 348 per sq mi (134 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Illinois City at a glance
| State | Illinois (IL) |
|---|---|
| County | Rock Island County |
| Type | Census-designated place |
| Population | 159 (2020) |
| Land area | 0.46 sq mi (1.2 km²) |
| Elevation | 764 ft (233 m) |
| Coordinates | 41.3991° N, 90.8997° W |
| ZIP code | 61259 |
| Census code (GEOID) | 1737062 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Illinois City
- Fairport, IA3.1 mi NW
- Buffalo Prairie4.8 mi SE
- Montpelier, IA6.3 mi NE
- Edgington7.1 mi E
- Buffalo, IA8.0 mi NE
- Eliza8.1 mi SW
- Muscatine, IA8.8 mi W
- Kent Estates, IA9.4 mi NW
- Andalusia10.0 mi E
- Blue Grass, IA10.3 mi NE
- Hamlet10.5 mi SE
- Millersburg11.8 mi S
Straight-line distance between town centers.
Frequently asked questions about Illinois City
What county is Illinois City in?
Illinois City is in Rock Island County, Illinois.
What is the population of Illinois City, IL?
159 people lived in Illinois City at the 2020 Census.
What is the ZIP code of Illinois City, IL?
The ZIP code of Illinois City is 61259.
What is the elevation of Illinois City?
764 feet (233 m) above sea level.
What towns are near Illinois City?
Fairport (3.1 mi), Buffalo Prairie (4.8 mi), Montpelier (6.3 mi), Edgington (7.1 mi), Buffalo (8.0 mi).
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