Thomson, Illinois

Population

Steady. Within 1% of 2020, every year since.

1,606

people, the 521st-largest of Illinois's cities and towns.

Census Population Estimates, 2025. Rank among Illinois's cities and towns computed by the Almanac. Sources: Census Population Estimates

The workday

9 in 10 jobs here go to people who live somewhere else.

88.5%

of 182 jobs located in Thomson are filled by in-commuters.

Census LEHD LODES, 2023. Sources: Census LEHD LODES

Rent

Median rent is up 58% since the 2005–2009 survey, before inflation.

$918

a month. Illinois's median is $1,274.

Census ACS 5-year, 2020-2024 (latest), with earlier 5-year windows. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year

The seam

Cross one tract line and median rent jumps $464.

A $464 gap between neighbors, the sharpest rent edge between adjacent tracts in Carroll County.

• $747 Tract 9604
• $1,211 Tract 9602

Census ACS 5-year, 2020-2024, adjacent tracts compared by the Almanac. Tract estimates carry wide margins of error. Sources: Census ACS 5-year

Room to build

The median rent sits inside what local wages can carry.

$875–$1,313

is the monthly rent range local workforce wages support.

• $918 median

Supportable rent computed by the Almanac from 2023 source wage data. Median rent: Census ACS 5-year, 2020-2024. Sources: Computed by the Almanac, Census ACS 5-year

Building

Most of the housing here is older than 2000.

• 4 homes permitted, 2022–2025
• 0% of those were in multifamily buildings
• 89% of all homes were built before 2000

Census Building Permits Survey, 2022–2025; Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census Building Permits Survey, Census ACS 5-year

Units needed

Closing the gap would add 0.5–1.0% to the 203 homes here.

1–2

is the estimated number of missing housing units, from the lowest to the highest of three estimates.

Range computed by the Almanac from 2023 jobs and household data, using three demand models: 1% of jobs located here, 1% of renter households, and a rate by town size applied to renters. The low end is the lowest of the three and the high end the highest. It is an estimate, not a count. Sources: Computed by the Almanac

Home value

A median home costs 56% less than Illinois's.

$117,000

median home value in Thomson.

• $117,000 Thomson
• $263,300 Illinois
• $332,700 U.S.

Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year