Colp is a village in Williamson County, Illinois, home to about 223 people across 0.1 square miles. Its ZIP code is 62921.
Mostly Colp
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| Nearest major airport | St. Louis Lambert International Airport (STL)96 miles away |
|---|---|
| Closer regional airport | Veterans Airport of Southern Illinois (MWA)5 miles away |
| Nearest city of 250,000+ | St. Louis, MO85 miles away |
| Nearest city of 1 million+ | Chicago, IL288 miles away |
Straight-line distances from the center of Colp; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Colp had 168 residents in the 2020 census, down 25% since 2000.
It’s the 1178th largest of 1,450 towns in Illinois by population.
Williamson County grew from 27,796 residents in 1900 to 67,153 in 2020.
Williamson County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 23°F. About 49 inches of rain and melted snow fall in a typical year, with about 11 inches of snow.
Source: NOAA 1991–2020 climate normals, Carbondale Sewage Plt, IL weather station (7 miles away).
26,291 jobs at 1,597 businesses in Williamson County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Grocery stores
Pharmacies
Libraries
Museums
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.