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CITY

Williamson

Illinois · 175 residents (2025 est.) · 1.171 sq mi
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The short version

Williamson has notably lower household income than the US average, with a median household income of $57,841. Population has fallen 36% since 2000, a loss of 91 residents. 6% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $75,800. With a median age of 51.0, the population is older than the US median of 38.9. Households here earn about 31% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 51.0
US median: 38.9
Less educated
6% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
160
−36%since 2000
from 251 in 2000
1990 – 2025
Population density
137 / sq mi
−36%since 2000
from 214 / sq mi in 2000
US average: 281
Median age
51.0
+39%since 2000
from 36.8 in 2000
US average: 38.9

PEP 2025 EST:175 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
1401822242663081990201020202024Williamson
2024160
1990201020202024
Section 02

Income & economy

Median household income
$57,841
+34%inflation adjusted, since 2000
from $23,750 in 2000
US average: $82,259
1990 – 2024
Per capita income
$32,692
+152%since 2000
from $12,988 in 2000
US average: $44,673
Households earning $100K+
27.2%
+12.9 ptssince 2009
from 14.3% in 2009
US average: 53.3%
Poverty rate
19.6%
+5.2 ptssince 2000
from 14.4% in 2000
US average: 12.5%
Income inequality (Gini)
0.418
−4%since 2010
from 0.434 in 2010
US average: 0.476
Workforce by industry, 2024
Information12.5%
US avg: 10.8%
Finance & insurance11.4%
US avg: 5.9%
Professional, scientific, technical11.4%
US avg: 5.1%
Wholesale trade9.1%
US avg: 6.9%
Retail trade9.1%
US avg: 9.9%
Arts, entertainment, food3.4%
US avg: 1.9%
Transportation & warehousing2.3%
US avg: 2.2%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
Other services0%
US avg: 6.7%
Public administration0%
US avg: 4.8%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$75,800
+25%inflation adjusted, since 2000
from $33,400 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$863
+1%inflation adjusted, since 2000
from $467 in 2000
US average: $1,442
Owner-occupied
67.9%
−19.0 ptssince 2000
from 86.9% in 2000
32.1% rent
Vacancy rate
17.3%
+5.6 ptssince 2009
from 11.7% in 2009
US average: 10.0%
Owner cost-burdened
34.5%
−1.9 ptssince 2009
from 36.5% in 2009
US average: 22.9%
Renter cost-burdened
19.2%
+3.8 ptssince 2009
from 15.4% in 2009
US average: 47.4%
Afford Score
1.3
−7%since 2000
from 1.4 in 2000
1990 – 2024
Gentrification Score
51
RELATED:See current rent listings in Williamson on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.6%(245)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%
Diversity Score0%(0)
2024
White, non-Hispanic89.4%(143)
Black0%(0)
Hispanic / Latino5%(8)
Asian0%(0)
Other5.6%(9)
Diversity Score24.4%(39)
Diversity Score
24
from 0 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
5.6%
−2.0 ptssince 2000
from 7.7% in 2000
US average: 35.6%
High school or higher
75.8%
−4.6 ptssince 2000
from 80.4% in 2000
US average: 89.6%
Graduate degree
0.0%
−1.4 ptssince 2000
from 1.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
30.5 min
+45%since 2000
from 21.0 min in 2000
US average: 26.5
Drive alone to work
86.9%
−3.0 ptssince 2009
from 89.9% in 2009
US average: 68.9%
Carpooled to work
4.8%
−5.4 ptssince 2009
from 10.1% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
6.0%
+6.0 ptssince 2009
from 0.0% in 2009
US average: 15.0%
Walked to work
2.4%
+2.4 ptssince 2009
from 0.0% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
9.9%
+1.7 ptssince 2009
from 8.2% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
0.0%
−13.9 ptssince 2011
from 13.9% in 2011
US average: 5.2%
Labor force participation
63.8%
+14.7 ptssince 2011
from 49.1% in 2011
US average: 63.5%
Self-employed
4.5%
+4.5 ptssince 2009
from 0.0% in 2009
US average: 13.1%
Management & professional
22.7%
−35.1 ptssince 2009
from 57.8% in 2009
US average: 42.5%
Section 08

People & community

Male
46.9%
+7.4 ptssince 2009
from 39.5% in 2009
Female
53.1%
−7.4 ptssince 2009
from 60.5% in 2009
Foreign born
0.6%
+0.6 ptssince 2009
from 0.0% in 2009
US average: 14.1%
Veterans
13.0%
−26.4 ptssince 2009
from 39.4% in 2009
US average: 6.2%
With a disability
27.5%
+9.1 ptssince 2012
from 18.4% in 2012
US average: 13.3%
Uninsured
1.3%
−85.0 ptssince 2013
from 86.3% in 2013
US average: 8.4%
Broadband at home
81.5%
+2.9 ptssince 2017
from 78.6% in 2017
US average: 91.0%
English only at home
100.0%
+1.4 ptssince 2016
from 98.6% in 2016
US average: 77.7%
Spanish at home
0.0%
−0.5 ptssince 2016
from 0.5% in 2016
US average: 13.6%
Drill deeper

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Head to head

Compare Williamson to nearby cities

WILLIAMSON VS
Highland
Income$82,551+43%
Home value$202,900+168%
Population10,042+5638%
SEE FULL COMPARISON →
WILLIAMSON VS
Bethalto
Income$64,775+12%
Home value$168,900+123%
Population9,202+5158%
SEE FULL COMPARISON →
WILLIAMSON VS
Edwardsville
Income$86,721+50%
Home value$299,800+296%
Population26,463+15022%
SEE FULL COMPARISON →
WILLIAMSON VS
Troy
Income$112,434+94%
Home value$268,000+254%
Population11,893+6696%
SEE FULL COMPARISON →
Frequently asked

How many people live in Williamson, Illinois?

Williamson, Illinois has about 160 residents according to the 2024 American Community Survey.

What is the median household income in Williamson, Illinois?

The typical household in Williamson, Illinois earns about $57,841 a year. Half of households make more than that, and half make less.

Is Williamson, Illinois expensive?

In Williamson, Illinois, the median home is worth about $75,800, and the typical rent is about $863 a month.

How educated are people in Williamson, Illinois?

About 5.6% of adults age 25 and over in Williamson, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Williamson, Illinois?

About 19.6% of people in Williamson, Illinois live below the federal poverty line.

Has Williamson, Illinois grown since 1990?

Yes, Williamson, Illinois has shrunk since 1990. The population has lost about 134 residents, a change of about -46 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →