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

Rental Market Trends in O Fallon, IL

SOURCE: TRULIA DATA

Rental market highlights

As of September 2026, the average rent in O Fallon, IL is $1,837 per month, which is 6% lower than the national average rent of $1,948 per month.

AVERAGE RENT

$1,837

-1.6%-$30 decrease month-over-month

14.8%$237 increase year-over-year

AVAILABLE RENTALS

APARTMENTS

$1,468

HOUSES

$1,900

TOWNHOUSES

$1,250

As of September 2026, townhomes are the most affordable rental option in O Fallon, IL at $1,250 per month, while houses are the most expensive at $1,900 per month. Apartments average $1,468 per month, offering a mid-range alternative for renters.

Average rent by number of bedrooms

Floor plan type	Average rent
1 Bedroom	$995
2 Bedrooms	$1,400
3 Bedrooms	$2,153
4 Bedrooms	$2,150
All	$1,837

As of September 2026, the average rent for a 1 bedroom rental in O Fallon, IL is $995 per month, followed by $1,400 for a 2 bedroom rental, $2,153 for a 3 bedroom rental, and $2,150 for a 4 bedroom rental.

Floor plan type	Average rent
1 Bedroom	$1,050
2 Bedrooms	$1,250
3 Bedrooms	$2,150
4 Bedrooms	—
All	$1,250

As of September 2026, the average rent for a 1 bedroom townhome in O Fallon, IL is $1,050 per month, followed by $1,250 for a 2 bedroom townhome, and $2,150 for a 3 bedroom townhome.

Floor plan type	Average rent
1 Bedroom	$950
2 Bedrooms	$1,400
3 Bedrooms	$2,795
4 Bedrooms	—
All	$1,895

As of September 2026, the average rent for a 1 bedroom apartment in O Fallon, IL is $950 per month, followed by $1,400 for a 2 bedroom apartment, and $2,795 for a 3 bedroom apartment.

Floor plan type	Average rent
1 Bedroom	—
2 Bedrooms	$1,350
3 Bedrooms	$1,900
4 Bedrooms	$2,150
All	$1,900

As of September 2026, the average rent for a 2 bedroom house in O Fallon, IL is $1,350 per month, followed by $1,900 for a 3 bedroom house, and $2,150 for a 4 bedroom house.