Williamson, Illinois
Williamson: Human settlement in Illinois, United States of America
About
Williamson is a city located in the county of Madison in the U.S. state of Illinois. Its population at the 2010 census was 230 and a population density of 148 people per km². After 10 years in 2020 city had an estimated population of 212 inhabitants.
Quick Facts about Williamson
| Population : | 212 (2020) |
| Country : | United States of America |
| State : | Illinois (United States) |
| County : | Madison County |
| Area : | 1.55 km2 |
| Time Zone : | America/Chicago |
| Local time : | 23:26:31 (4th December 2025) |
| Density : | 137 Pop. per km² as of 2020 |
| Population growth : | -8.49% (2010-2020) |
Geography
Williamson is located at 38°59'8"N 89°45'50"W (38.9856000, -89.7639800).
Williamson map
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Demographics
According to census records, the population of Williamson decreased by 8.49% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 230 | - | census |
| 2011 | 229 | -0.44% | estimation process |
| 2012 | 227 | -0.88% | estimation process |
| 2013 | 224 | -1.34% | estimation process |
| 2014 | 223 | -0.45% | estimation process |
| 2015 | 222 | -0.45% | estimation process |
| 2016 | 221 | -0.45% | estimation process |
| 2017 | 220 | -0.45% | estimation process |
| 2018 | 218 | -0.92% | estimation process |
| 2019 | 215 | -1.4% | estimation process |
| 2020 | 212 | -1.42% | estimation process |
Schools in Williamson
College & universities near Williamson, IL
| Code | Name | City | ZIP |
|---|---|---|---|
| 149499 | Tri-County Beauty Academy | LITCHFIELD (IL) | 62056 |
| 149231 | Southern Illinois University-Edwardsville | Edwardsville (IL) | 62026-1259 |
| 145372 | Greenville University | Greenville (IL) | 62246 |
| 143288 | Blackburn College | Carlinville (IL) | 62626 |
| 446084 | CALC Institute of Technology | Alton (IL) | 62002 |
Stations (10)
Amtrak & bus stations near Williamson, IL
| Code | Name | Address | Type |
|---|---|---|---|
| ALN | Alton | 3400 College Ave. | RAIL |
| CRV | Carlinville | 128 Alton Rd. | RAIL |
| STL | Gateway Transportation Center | 551 South 16th St. | RAIL |
| KWD | Kirkwood | 110 West Argonne Dr. | RAIL |
| CEN | Centralia station | 108 East Broadway | RAIL |
Post offices near Williamson
| Post Office Name | City | ZIP |
|---|---|---|
| Livingston Post Office | Livingston (IL) | 62058 |
Other places with the same name (6)
- Williamson , New York town in New York, United States with a population of 6,688 people.
- Williamson , Arizona census designated place with a population of 5,438 people.
- Williamson , West Virginia county seat of Mingo County, West Virginia, United States with a population of 2,616 people.
- Williamson , Georgia human settlement in Pike County, Georgia, United States of America with a population of 521 people.
- Williamson , Iowa city in Iowa, USA with a population of 157 people.
Other cities in Madison County
Cities, towns, neighborhoods & other populated places in Madison County , IL. (more)
| City Name | Population | Title |
|---|---|---|
| Upper Alton | 29,251 | City in Madison County, Illinois, United States of America |
| Alton | 26,049 | City in Madison County, Illinois, United States |
| Granite City | 25,662 | Township in Madison County, Illinois |
| Edwardsville | 25,189 | City in Madison County, Illinois, United States |
| Collinsville | 24,217 | City in Illinois |
| Godfrey | 17,393 | Village in Madison County, Illinois, United States |
| Glen Carbon | 12,887 | Village in Illinois, United States |
| Nameoki | 12,056 | Township in Madison County, Illinois |
| Troy | 10,399 | City in Madison County, Illinois, United States |
| Highland | 10,017 | City in Madison County, Illinois, United States |
| Wood River | 10,002 | City in Illinois, United States |
| Bethalto | 9,201 | Village in Illinois |
| Maryville | 7,959 | City in Illinois, United States of America |
| Newport | 6,630 | Neighborhood in Madison, Illinois, USA |
| East Alton | 5,922 | City in Illinois, United States of America |
| Pontoon Beach | 5,655 | Town |
