Studio Rent · October 2026

Studio Apartment Rent in O Fallon, IL

$1,130/mo

Median asking rent for a studio apartment in O Fallon, Illinois as of October 2026. That's +31% lower than the citywide median of $1,631 and +12% below the national studio median of $1,290.

Studio median
$1,130
October 2026
vs city overall
-31%
$1,631 city median
vs national
-12%
$1,290 US median
Illinois rank
#39
of 136 cities

Income needed for a studio in O Fallon

Using the standard 30% rent-to-income guideline (the threshold above which households are considered rent-burdened), here's what you need to earn to comfortably afford a studio at the current median rent.

Annual income
$45,200
Monthly gross
$3,767
Hourly (full-time)
$21.73

Rent by apartment size in O Fallon

Compare O Fallon's median rent across every apartment size.

Studio (current)
$1,130
1-Bedroom
$1,170
2-Bedroom
$1,440
3-Bedroom
$1,860
4+ Bedroom
$2,140

Cheapest cities for a studio in Illinois

#CityStudio rent
1Carbondale$447
2Dixon$610
3Charleston$640
4Quincy$650
5Pekin$660
6East Peoria$670
7Rock Island$680
8Danville$690
9Moline$700
10Peoria Heights$700
11Normal$720
12Peoria$738
13Springfield$750
14Washington$750
15Decatur$760

Most expensive cities for a studio in Illinois

#CityStudio rent
1Morton Grove$2,190
2Lake Forest$2,190
3Deerfield$2,190
4Wilmette$2,100
5Buffalo Grove$2,100
6Highland Park$2,060
7Plainfield$2,015
8Naperville$1,978
9Vernon Hills$1,970
10Streamwood$1,970
11Northbrook$1,960
12Bolingbrook$1,925
13Romeoville$1,910
14Elmhurst$1,910
15Geneva$1,900

Nearby cities — studio rent

Considering nearby alternatives? 5 of these cities have cheaper studio rents than O Fallon.

CityDistanceStudio rentvs O Fallon
Shiloh, IL6.1 mi$960$-170 (-15%)
Fairview Heights, IL6.2 mi$1,030$-100 (-9%)
Swansea, IL6.8 mi$1,225+$95 (+8%)
Collinsville, IL7.4 mi$880$-250 (-22%)
Belleville, IL9.2 mi$873$-257 (-23%)
Edwardsville, IL16 mi$1,020$-110 (-10%)
Granite City, IL16.1 mi$840$-290 (-26%)
Wood River, IL20.9 mi$840$-290 (-26%)
Saint Louis, MO22.6 mi$967$-163 (-14%)
Bellefontaine Neighbors, MO22.9 mi$930$-200 (-18%)
Spanish Lake, MO23.6 mi$900$-230 (-20%)
Jennings, MO25.7 mi$840$-290 (-26%)

Studio rent in O Fallon — common questions

How much is a studio apartment in O Fallon?

As of October 2026, the median studio apartment rent in O Fallon, Illinois is $1,130 per month. This is +31% below the citywide median of $1,631.

What income do you need to afford a studio in O Fallon?

Using the standard 30% rent-to-income rule, you would need an annual income of about $45,200 ($3,767/month gross), which works out to roughly $21.73/hour at a full-time job.

Is O Fallon expensive for a studio compared to the rest of the US?

O Fallon's studio median of $1,130 is +12% below the national studio median of $1,290. It ranks in the 37th percentile of US cities tracked.

How does O Fallon rank for studio rent in Illinois?

Among the 136 cities in Illinois with studio data, O Fallon ranks #39 from cheapest to most expensive.

Are there cheaper studio options near O Fallon?

Yes — nearby cities with cheaper studio rents include Shiloh ($960), Fairview Heights ($1,030), Collinsville ($880).

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Methodology: Bedroom-level rent medians come from HUD Fair Market Rent data calibrated to the Zillow Observed Rent Index (ZORI) for O Fallon, which serves as the citywide anchor. When the HUD bedroom values exceed the ZORI city median (a common quirk in luxury markets and small samples), bedroom values are proportionally scaled down to align. Income required uses the standard 30% rent-to-income guideline. Comparison rankings use the same data month across all cities (October 2026) and exclude cities with median rent below $400 or above $20,000.