Average Rent in Williamson County, IL↑ Rents rising 5.4% YoY🔺 11th priciest in IL

Williamson County, IL has rental prices ranging from $769/month to $1,539/month in 2025, depending on unit size. The typical 1-bedroom apartment rents for $786/month — 44% below the national average of $1,400/month. With a median household income of $65,521/year, spending $786/month on a 1-bedroom represents 14% of gross income — within the recommended 30% threshold.

How Williamson County Compares

With an average 2-bedroom rent of $1,031/month, Williamson County ranks #11 most expensive of the 87 cities tracked in Illinois — pricier than 68% of all US cities in our data.

The Williamson County Rental Market

The Williamson County, IL area has a population of about 66,902 and 29% of households renting rather than owning. That renter share runs below the US average of ~34%, a more homeowner-heavy market where rental inventory can be limited.

Rent Trends

2-bedroom rents in Williamson County, IL have risen by $53/month (5.4%) over the past year, from $978 to $1,031. This modest growth is consistent with broader inflationary trends seen across US rental markets.

Affordability

To afford a 1-bedroom apartment in Williamson County, IL without exceeding the 30% housing cost guideline, a renter needs an annual income of approximately $31,440. The local median household income of $65,521 exceeds that threshold by $34,081, making Williamson County relatively accessible compared to local wages.

Economy & Jobs

Williamson County, IL has an unemployment rate of 3.5%, 0.4 percentage points below the national average of 3.9%. Strong employment conditions typically sustain rental demand, as workers relocate to the area and local residents maintain stable housing.

Is Williamson County, IL Affordable?

Income needed to rent or buy, price history, and how this city compares to nearby metros.

Rent or Buy in Williamson County?

Break-even analysis and mortgage estimates based on local market data.

Living in Williamson County

Cost of living, job market, crime rates, and moving cost estimates.