Thomson
Village in Carroll County, Illinois

Thomson is a village in Carroll County, Illinois, with 1,610 residents (2020 Census). It sits at 597 ft (182 m) above sea level. The nearest town is Andover, 7.2 miles W.
- 1,610residents (2020 Census)
- 597 ftelevation · 182 m
- 2.2 sq miland area · 5.7 km²
- 726 / sq mipopulation density
- 61285ZIP code
About Thomson
Thomson is a village along Illinois Route 84 near the Mississippi River in Carroll County, Illinois, United States. As of the 2020 census, Thomson had a population of 1,610. Just north of the village is the United States Penitentiary, Thomson, a mostly-unused former state prison, purchased by the Federal Bureau of Prisons in 2012. Currently, USP Thomson houses over 100 low-security inmates as it remodels to federal maximum-security standards.
Thomson is known for its watermelons, and it has the nickname "Melon Capital of the World."
Text: Wikipedia · CC BY-SA 4.0
Thomson weather: 7-day forecast
Loading the National Weather Service forecast…
Source: National Weather Service (NOAA).
Live webcams in Thomson
Webcams: Windy.com
Living in Thomson
- Median household income
- $61,250
- Median home value
- $117,000
- Median rent
- $918/mo
- Median age
- 40.7
Do you know Thomson? Tell us about it
Help other travelers: share what makes Thomson special. We review every message before publishing it.
Map of Thomson
Tap any street on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Thomson Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Thomson, IL population
Thomson had 1,610 residents in the 2020 Census.
| 2020 Census | 1,610 |
|---|---|
| Density | 726 per sq mi (280 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Thomson at a glance
| State | Illinois (IL) |
|---|---|
| County | Carroll County |
| Type | Village |
| Population | 1,610 (2020) |
| Land area | 2.22 sq mi (5.7 km²) |
| Elevation | 597 ft (182 m) |
| Coordinates | 41.9747° N, 90.1122° W |
| ZIP code | 61285 |
| Official website | thomsonil.com |
| Census code (GEOID) | 1775172 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Thomson
- Andover, IA7.2 mi W
- Sabula, IA7.5 mi NW
- Fulton7.9 mi S
- Savanna8.4 mi N
- Mount Carroll10.8 mi NE
- Clinton, IA11.3 mi SW
- Miles, IA11.5 mi NW
- Chadwick11.8 mi E
- Goose Lake, IA13.9 mi W
- Morrison13.9 mi SE
- Albany14.1 mi S
- Camanche, IA15.1 mi SW
Straight-line distance between town centers.
Frequently asked questions about Thomson
What county is Thomson in?
Thomson is in Carroll County, Illinois.
What is the population of Thomson, IL?
1,610 people lived in Thomson at the 2020 Census.
What is the ZIP code of Thomson, IL?
The ZIP code of Thomson is 61285.
What is the elevation of Thomson?
597 feet (182 m) above sea level.
What towns are near Thomson?
Andover (7.2 mi), Sabula (7.5 mi), Fulton (7.9 mi), Savanna (8.4 mi), Mount Carroll (10.8 mi).
Last updated: