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

Rental Market Trends in O Fallon, IL

SOURCE: TRULIA DATA

Rental market highlights

As of June 2026, the average rent in O Fallon, IL is $1,650 per month, which is 15% lower than the national average rent of $1,951 per month.

AVERAGE RENT

$1,650

-15.4%-$300 decrease month-over-month

-5.5%-$97 decrease year-over-year

AVAILABLE RENTALS

APARTMENTS

$1,425

HOUSES

$2,100

TOWNHOUSES

$850

As of June 2026, townhomes are the most affordable rental option in O Fallon, IL at $850 per month, while houses are the most expensive at $2,100 per month. Apartments average $1,425 per month, offering a mid-range alternative for renters.

Average rent by number of bedrooms

Floor plan type	Average rent
1 Bedroom	$1,095
2 Bedrooms	$1,450
3 Bedrooms	$1,950
4 Bedrooms	$2,979
All	$1,650

As of June 2026, the average rent for a 1 bedroom rental in O Fallon, IL is $1,095 per month, followed by $1,450 for a 2 bedroom rental, $1,950 for a 3 bedroom rental, and $2,979 for a 4 bedroom rental.

Floor plan type	Average rent
1 Bedroom	—
2 Bedrooms	$1,150
3 Bedrooms	$850
4 Bedrooms	—
All	$850

As of June 2026, the average rent for a 2 bedroom townhome in O Fallon, IL is $1,150 per month, followed by $850 for a 3 bedroom townhome.

Floor plan type	Average rent
1 Bedroom	$1,050
2 Bedrooms	$1,450
3 Bedrooms	$1,913
4 Bedrooms	$3,900
All	$1,450

As of June 2026, the average rent for a 1 bedroom apartment in O Fallon, IL is $1,050 per month, followed by $1,450 for a 2 bedroom apartment, $1,913 for a 3 bedroom apartment, and $3,900 for a 4 bedroom apartment.

Floor plan type	Average rent
1 Bedroom	—
2 Bedrooms	$1,450
3 Bedrooms	$1,800
4 Bedrooms	$2,000
All	$2,100

As of June 2026, the average rent for a 2 bedroom house in O Fallon, IL is $1,450 per month, followed by $1,800 for a 3 bedroom house, and $2,000 for a 4 bedroom house.