Williamson County, IL

Comprehensive housing, income, and cost of living data for Williamson County, Illinois. Population: 67.1K.

View on Map

Median Home Price

$160.2K

Based on 8 cities

Median Household Income

$65.5K

Annual household income

Price-to-Income Ratio

2.4x

Highly affordable

Salary Needed to Buy

$46.5K

30-yr mortgage, 6.5% rate, 20% down

Housing & Finance

Annual Property Tax

$2,490

Average annual amount

Effective Tax Rate

1.55%

Property tax / home value

Monthly Housing Costs

Mortgage (P&I)$810

Property Tax$208

Insurance$66.75

Total Monthly$1,084

Historical Home Prices

2015

$107.1K

2016

$108.7K

+1.4%%

2017

$111.8K

+2.8%%

2018

$109.1K

-2.4%%

2019

$118.8K

+8.9%%

2020

$125.4K

+5.6%%

2021

$130.1K

+3.8%%

2022

$135.0K

+3.8%%

2023

$141.1K

+4.5%%

2024

$143.8K

+1.9%%

2025

$145.9K

+1.5%%

Source: County price history data via Zillow ZHVI

Demographics & Economics

Unemployment Rate

4.9%%

Near national average

Population Density

160

People per square mile

Homicide Rate

3.2

Low (per 100K residents)

Political Lean (2020)

Competitive

R+0

Racial Demographics

White

88.2%

Black

3.5%

Hispanic

2.8%

Asian

1.5%

Two or More Races

3.6%

Source: Census ACS 2023. Hispanic/Latino ethnicity counted separately from race.

Climate & Environment

Average Temperature

56°F

Annual average

Sunny Days

206

Days per year

Annual Rainfall

48.3"

Inches per year

Natural Disaster Risk

High Risk

Score: 86/100

Explore More

View on Interactive Map Compare Counties View All IL Counties