Rental Market Trends in Illinois
$1,667/month
Average Rent
+3.9%
Increase in the Last Year
+$62
Average Price Increase
Ranked 16th
Most Expensive Rent by State
42,883
Available Rentals
Decatur, IL
City with the Lowest Rent
What is the average rent in Illinois?
As of September 2025, the average rent in Illinois is $1,667/month. When you rent an apartment in Illinois, you can expect some variability depending on the region. For instance, metropolitan areas may have higher rents than smaller towns and rural areas. In general, you can expect to pay about $1,507 per month for a studio, $1,667 for a one-bedroom apartment, and around $1,893 for a two-bedroom apartment in Illinois. If you opt for a three-bedroom rental, you could pay $2,446 or more.
Rent by City
What are the most affordable cities in Illinois?
Based on current rent prices, the cheapest cities in Illinois to live are Decatur, Springfield and Cicero.
What are the most expensive cities in Illinois?
Based on current rent prices, the most expensive cities in Illinois to live are Lake Forest, Oak Brook and Deer Park.
Nearby State Markets
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Methodology
† Rent data is provided by CoStar Group’s Market Trend reports. As the industry leader in commercial real estate information, analytics, and news, CoStar conducts extensive research to produce and maintain a comprehensive database of commercial real estate information. We combine this data with public record to provide the most up-to-date rental information available.
State graphics provided by ProPublica
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