Is O'Fallon, IL a good place to invest in rental property?

O'Fallon, IL has a median modeled monthly cash flow of $-945 and a median cap rate of 3.4%, on a median sold price of $358,800. Prices changed +3.5% year over year.

What is the average cap rate in O'Fallon, IL?

The median cap rate across recently sold homes in O'Fallon, IL is 3.4%, based on CashFlowRE's rent and expense modeling.

What is the median home price in O'Fallon, IL?

The median sold price in O'Fallon, IL is $358,800 (about $147 per square foot).

Investing in O'Fallon, IL Real Estate

A data-driven snapshot of the O'Fallon, IL rental-property market, built from recently sold homes and CashFlowRE's per-listing investment modeling — median price, cap rate, monthly cash flow, appreciation and inventory — so you can judge the market before you ever open a listing.

$358,800Median sold price

$147Median $/sqft

3.4%Median cap rate

$-945Modeled cash flow / mo

+3.5%Appreciation YoY

9.8Months of supply

406Active listings

499Sold (last 12 mo)

What the O'Fallon numbers say

In O'Fallon, IL, the median home sold for $358,800 (about $147 per square foot), and the typical deal models out to a 3.4% cap rate with a median $-945 of monthly cash flow. Sold prices moved +3.5% over the past year. Inventory sits at about 9.8 months of supply — a looser, buyer-friendly market. These are medians across recorded sales; individual properties vary widely, which is exactly what CashFlowRE scores listing by listing.

🔨 See 3 fix-and-flip deals in O'Fallon — listings where the estimated after-repair value beats list price + rehab.

Other Illinois markets to compare

See O'Fallon cash-flowing listings

CashFlowRE ranks every for-sale home in O'Fallon, IL by cap rate, cash-on-cash return, DSCR and monthly cash flow — so the best rental deals rise to the top. Create a free account to screen O'Fallon deals, or browse the national market data.