O Fallon, IL rental market

What is the average rent in O Fallon, IL?

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Last updated March 18, 2026

Rental market summary

The average rent for all bedrooms and all property types in O Fallon, IL is $1,700.

Average rent

$1,700

Month-over-month change

+$5

Year-over-year change

+$300

Available rentals

42

Source: Zillow Rentals data

Rental price range

The price range for all bedrooms and all property types is $775 to $3,600.

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Rent frequencies
Rent priceNumber of rental properties
$7001
$8005
$9001
$1,0001
$1,1004
$1,2003
$1,3003
$1,4001
$1,5003
$1,6001
$1,7005
$1,9002
$2,0001
$2,1003
$2,2002
$2,3002
$2,4004
$2,5003
$2,6002
$2,7001
$3,3001
$3,4001
$3,5001
$3,600+1

Average rent price over time

In the last year, rent has increased by $300 compared to the previous year.

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Average rent price over time
Last year (2025)This year (2026)
Jan$1,600$1,495
Feb$1,525$1,825
Mar$1,335$1,400
Apr$1,500No data
May$1,450No data
Jun$1,595No data
Jul$2,000No data
Aug$1,595No data
Sep$1,850No data
Oct$1,500No data
Nov$1,400No data
Dec$1,402No data

Market temperature

The O Fallon, IL rental market temperature is COOL. Market temperature is based on changes in renter demand compared to the national average. For example, a hot market has increasing demand.

cool

Temperature is based on all bedrooms and all property types.

Compare average rent in markets

Rent in O Fallon, IL is 15% lower than the national average.

O Fallon, ILvs.

$1,700

$2,000

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Frequently asked questions

1. What is the average rent in O Fallon, IL?

The average rent in O Fallon, IL is $1,700.

2. What is the average rent for a studio apartment in O Fallon, IL?

The average rent for a studio apartment in O Fallon, IL is $1,956 per month.

3. What is the average rent for a one-bedroom apartment in O Fallon, IL?

The average rent for a one-bedroom apartment in O Fallon, IL is $1,025 per month.

4. What is the average rent for a two-bedroom apartment in O Fallon, IL?

The average rent for a two-bedroom apartment in O Fallon, IL is $1,233 per month.

5. What is the average rent for a three-bedroom apartment in O Fallon, IL?

The average rent for a three-bedroom apartment in O Fallon, IL is $1,997 per month.

6. What is the average rent for a four-bedroom apartment in O Fallon, IL?

The average rent for a four-bedroom apartment in O Fallon, IL is $2,588 per month.

7. How much does it cost to rent a house in O Fallon, IL?

Houses in O Fallon, IL rent between $775 - $3,600 with an average rent of $1,700.

8. How has the rent in O Fallon, IL changed in the last year?

In the last year, the rent in O Fallon, IL increased by $300

9. How much has the rent in O Fallon, IL increased/decreased in the last month?

In the last month, the rent in O Fallon, IL increased by $5

10. How many available rentals are there in O Fallon, IL?

There are currently 42 rentals available in O Fallon, IL.

11. How do rent prices in O Fallon, IL compare with the national average?

The average rent in O Fallon, IL is $1,700 — 15% lower the national average of $2,000.