What's the average rent in O Fallon, IL?

Rental Market Trends in O Fallon, IL

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SOURCE: TRULIA DATA

Rental market highlights

As of May 2026, the average rent in O Fallon, IL is $1,781 per month, which is 7% lower than the national average rent of $1,910 per month.

AVERAGE RENT

$1,781

12.0%$191 increase month-over-month

19.1%$286 increase year-over-year

AVAILABLE RENTALS

APARTMENTS

$1,897

HOUSES

$2,195

TOWNHOUSES

$1,050

As of May 2026, townhomes are the most affordable rental option in O Fallon, IL at $1,050 per month, while houses are the most expensive at $2,195 per month. Apartments average $1,897 per month, offering a mid-range alternative for renters.

Average rent by number of bedrooms

Floor plan type	Average rent
1 Bedroom	$1,050
2 Bedrooms	$1,387
3 Bedrooms	$2,300
4 Bedrooms	$2,000
All	$1,650

As of May 2026, the average rent for a 1 bedroom rental in O Fallon, IL is $1,050 per month, followed by $1,387 for a 2 bedroom rental, $2,300 for a 3 bedroom rental, and $2,000 for a 4 bedroom rental.

Floor plan type	Average rent
1 Bedroom	$1,050
2 Bedrooms	$1,345
3 Bedrooms	$1,850
4 Bedrooms	—
All	$1,050

As of May 2026, the average rent for a 1 bedroom townhome in O Fallon, IL is $1,050 per month, followed by $1,345 for a 2 bedroom townhome, and $1,850 for a 3 bedroom townhome.

Floor plan type	Average rent
1 Bedroom	$850
2 Bedrooms	$1,265
3 Bedrooms	$1,950
4 Bedrooms	—
All	$1,400

As of May 2026, the average rent for a 1 bedroom apartment in O Fallon, IL is $850 per month, followed by $1,265 for a 2 bedroom apartment, and $1,950 for a 3 bedroom apartment.

Floor plan type	Average rent
1 Bedroom	—
2 Bedrooms	$985
3 Bedrooms	$2,500
4 Bedrooms	$2,000
All	$2,195

As of May 2026, the average rent for a 2 bedroom house in O Fallon, IL is $985 per month, followed by $2,500 for a 3 bedroom house, and $2,000 for a 4 bedroom house.