Photo: Classiv · CC BY-SA 4.01,114 homes sold in O'Fallon in the last year, at a typical $367K
Almost every sale is a house. Below: what each kind of home sells for, what your budget buys, the best months to buy, how hard you’ll have to bid, and a shortcut to every site where O'Fallon homes are listed.
Every place O'Fallon homes are listed, in one stop
We don’t copy listings: the agents’ sites have the photos and the latest price changes. Set what you want once and we open each site already filtered to O'Fallon.
For sale
Rent
New, land & open houses
Links open the listing sites; TownRatings isn’t paid for them and doesn’t rank one above another. Rentals and government-owned homes come from sources outside the MLS.
5% of O'Fallon’s sales are condos, at $162K less than a house
981 houses and 59 condos sold in the year to May 2026. Houses sell faster and draw more bidding wars.
typical sale · 981 sold in 12 months
- Per square foot
- $174MO $163
- Days to sell
- 13
- Sold over asking
- 42%
- Listings with a price cut
- 42%
typical sale · 59 sold in 12 months
- Per square foot
- $166MO $194
- Days to sell
- 23
- Sold over asking
- 25%
- Listings with a price cut
- 48%
Townhouses: 74 sold, typical $273K
Too few sales in 12 months for reliable figures.
Fewer homes sell than before 2021, at 1.8 times the 2016 price
1,114 sales in the last year, against 1,802 in 2020 and a low of 1,063 in 2024. The typical sale went from $207K in 2016 to $367K.
Source: Redfin Data Center, MLS sales. Typical price and $/sq ft are the monthly medians, weighted by sales.
What $350K buys in O'Fallon
Check a listing against what O'Fallon homes sold for
Against the town’s median price per square foot over the last 12 months. A rough check: condition, lot and location within town move a price more than this can see.
Bidding wars in O'Fallon are more common than before the pandemic, but 54% fewer homes come up for sale
We read every month of O'Fallon’s home sales since 2013 so you don’t have to. Each figure covers 12 months, because a single month in a town is too few sales to mean much. Latest: the year to May 2026, 1,114 sales.
If you’re buying in O'Fallon
- Shop in March. It brings about 143 new listings a month, close to the busiest month, with fewer bidding wars (37% over asking).
- You can negotiate. 42% of listings have cut their price, against 32% before the pandemic.
- Bid near asking. Buyers paid 100.3% of the list price on average; 40% paid over.
Summer brings both the most homes and the most bidding wars
June has the most new listings (about 168 a month), and the most competition: 47% close over asking. March and April offer nearly as much choice with fewer homes bid up (37%). January has the least competition (29%) but only about 89 new listings.
Averages for each calendar month, 2015 on.
Calmer than the 2021 frenzy, and hotter than Missouri
| O'Fallon now | 2017–19 | 2021 peak | MO now | |
|---|---|---|---|---|
| Sold over askingShare of sales that closed above the list price | 40% | 26% | 67% | 21% |
| Gone within two weeksShare of homes under contract within 14 days | — | — | — | 42% |
| Listings with a price cutShare of homes for sale that cut their price | 42% | 32% | 19% | 27% |
| Price paid vs. askingAverage sale price ÷ list price | 100.3% | 99.1% | 103.5% | 98% |
| Days to sellMedian days from listing to contract | 12 | 36 | 7 | 36 |
120 homes for sale on a typical day
That’s 1.4 times the 2021 low (89), 54% fewer than in 2017–19 and well under 2015’s 423.
1 in 2 listings has cut its price
42% in the last year, against 32% in 2017–19 and 27% across Missouri. More sellers are pricing high and coming down.
Since 2019, houses are up 51%, condos 27%
A house typically sold for $384K in the last year (981 sales), a condo for $222K (59).
Median sale price, weighted by sales each month. Years with fewer than 4 sales of a type are left out.
O'Fallon ranks 38th of 122 busy Missouri markets for bidding wars
Share of sales over asking in the last year, among towns with 60 or more sales. O'Fallon is in the middle of the pack.
Source: Redfin Data Center, city market tracker, January 2013 to May 2026 (MLS sales, not seasonally adjusted). Ratios are weighted by homes sold; price cuts by homes for sale.
Owning the typical O'Fallon home costs about $2,253 a month
Price: O'Fallon’s typical sale, last 12 months. Property tax at O'Fallon’s 1.1% (median bill ÷ median value, Census ACS); insurance at 0.35% of price a year. Before PMI, HOA dues, upkeep and the tax deduction. Whether O'Fallon is affordable on local pay is on Cost of living.
Six things worth knowing
New listings in June
The month with the most choice. December has the fewest, about 60.
Best time to buyProperty tax, a year
Of a home’s value: the median bill over the median home value. On a $367K home, about $4,060 a year.
Taxes vs. neighborsSchools
The schools grade for O'Fallon, from test results, graduation and how much students grow.
Schools in O'FallonTypical commute
The average one-way trip to work for people who live in O'Fallon.
Work & commuteCheck the flood map
Flood insurance isn’t in a standard policy, and lenders require it in FEMA flood zones. Check the address before you make an offer.
Natural hazardsLook up any property
Assessed value, lot size and every past sale of a home you’re eyeing are public, at the town or county assessor and the registry of deeds.
No busy market nearby sells for less a square foot
The busier markets within 25 miles of O'Fallon, by what sold. Prices, taxes and how far a paycheck goes next door are on Cost of living.
| Sold | Typical sale | $/sq ft | Over asking | Days to sell | |
|---|---|---|---|---|---|
| O'Fallon | 1,114 | $367K | $174 | 40% | 12 |
| St. Peters | 752 | $330K | $173 | 44% | 18 |
| Lake St. Louis | 291 | $420K | $171 | 31% | 27 |
| Dardenne Prairie | 171 | $527K | $169 | 33% | 29 |
| Cottleville | 89 | $535K | $210 | 45% | 30 |
| Weldon Spring | 76 | $702K | $201 | 33% | 36 |
| St. Paul | 44 | $447K | $212 | 30% | 60 |
Redfin Data Center, June 2025 to May 2026. Towns with fewer than 20 sales are left out, and Redfin doesn’t report every town separately.
Post your home to O'Fallon, free
Selling it yourself, renting out an apartment or looking for a roommate? Post it to O'Fallon. People who follow the town see it, and so do people comparing O'Fallon with their own town. No commission, no listing fee.
Questions about buying a home in O'Fallon
What do homes sell for in O'Fallon, MO?
1,114 homes sold in the year to May 2026 at a typical $367K, $174 a square foot. Houses sold for about $384K, condos for about $222K.
Is O'Fallon a buyer’s or seller’s market?
A seller’s market: 128 homes were for sale in May 2026 and 110 sold, about 1.2 months of supply. Buyers paid 100.3% of asking on average, and 42% of listings cut their price.
When is the best time to buy in O'Fallon?
June brings the most new listings. The sales history shows which months have fewer bidding wars.
How much are property taxes in O'Fallon?
About 1.1% of a home’s value a year. On a $367K home that’s near $4,060.
Where can I see homes for sale in O'Fallon?
Zillow, Redfin, Realtor.com and Homes.com all carry O'Fallon’s MLS listings; the search links above open each one filtered to O'Fallon.
Sales, prices, days on market and listings: Redfin Data Center (MLS, monthly, not seasonally adjusted). Property tax rate: Census American Community Survey. Two-bedroom rent: HUD Fair Market Rent. Typical home value: Zillow Home Value Index. Schools grade: TownRatings (how grades work).