What is the average apartment size in O'Fallon?

The average size for a O'Fallon City, MO apartment is 960 square feet, but this number varies greatly depending on unit type, with cheap and luxury alternatives for houses and apartments alike. Studio apartments are the smallest and most affordable, 1-bedroom apartments are closer to the average, while 2-bedroom apartments and 3-bedroom apartments offer a more generous square footage.

What is the average rent in O'Fallon?

As of Oct / 2025, the average rent in O'Fallon is $1,514 per month, a 2.92% increase from last year’s average of $1,471.

What is the average apartment size in O'Fallon?

The typical apartment in O'Fallon offers about 960 sq. ft. square feet of living space, though actual sizes vary depending on layout and amenities.

O'Fallon City, MO Rental Market Trends

Q: What's the typical rent budget in O'Fallon?

The typical rent budget in O'Fallon ranges from $1,001 to $1,500 per month, with 50% of rentals in this range.

Q: Do most people rent or own in O'Fallon?

In O'Fallon, 19% of households rent while 81% own their homes, based on the latest U.S. Census data.

Last updated: November 19, 2025 | Source: RentCafe Market Analysis, Yardi Matrix, U.S. Census Bureau

Highlights

The average rent for an apartment in O'Fallon is $1,514, a 2.92% increase compared to the previous year, when the average rent was $1,471.

One-bedroom apartments provide 756 square feet for $1,333, balancing privacy and affordability.

Two-beedroom units at $1,566 offer 1,038 square feet, perfect for roommates or small families.

Three-bedroom apartments deliver maximum space (1,324 sq ft) for $2,021, suitable for larger households.

Average rent in O'Fallon City, MO

Last updated: November 19, 2025

	Average Rent	Average Apartment Size
All Rentals	$1,514	960 sq. ft.
Studio	n/a	n/a
1 Bed	$1,333	756 sq. ft.
2 Beds	$1,566	1,038 sq. ft.
3 Beds	$2,021	1,324 sq. ft.

O'Fallon City, MO rent trends

Rental prices in O'Fallon City, MO have increased by 2.92% over the past year. The average rent moved from $1,471 to $1,514.

What's the typical rent budget in O'Fallon City, MO?

The largest share of rentals in O'Fallon City, MO (50%) fall between $1,001-$1,500 per month. This suggests that most people succesfully find suitable apartments within this price.

Do most people rent or own in O'Fallon City, MO?

2,194 or 19% of the households in O'Fallon City, MO are renter-occupied while 9,524 or 81% are owner-occupied.

Access comprehensive real estate data and information on Yardi Matrix

How O'Fallon Compares to Other Cities

City	Average Rent
O'Fallon	$1,514
Kansas City	$1,304
Saint Louis	$1,398
Springfield	$1,114
Saint Charles	$1,448
University City	$1,546
Florissant	$1,044
O'Fallon	$1,549
Ballwin	$1,456
Creve Coeur	$1,438
Independence	$1,184
Chesterfield	$1,627
Lake Saint Louis	$1,528
Wentzville	$1,499
Saint Peters, MO	$1,519
Hazelwood, MO	$1,024
Ferguson, MO	$907
Olivette, MO	$1,664
Kirkwood, MO	$1,586
Maryland Heights, MO	$1,259
Valley Park, MO	$1,498

Where this data comes from

The rental statistics on this page were compiled by RentCafe.com, a nationwide apartment search website trusted by millions of renters to find apartments and houses for rent throughout the U.S.

Rent prices, trends, and apartment sizes were calculated based on data from our sister company, Yardi Matrix, an apartment market intelligence solution that covers approximately 90% of the U.S. metro area population. The data includes comprehensive information on all O'Fallon apartment buildings with 50 or more units, totaling 23.5 million apartments across 181 U.S. markets.

Housing composition data was sourced from the U.S. Census Bureau, using the most recently available information by tenure.