O’Fallon Home Prices Hold at $380,000 Median as Sales Volume Rises: Market Update September 2026

The O’Fallon housing market continues to show stability, with the median sold price over the past twelve months holding at $380,000. This figure reflects a total of 1,409 home sales in O’Fallon, an increase of 7.8 percent compared to the 1,307 sales recorded in the previous twelve-month period. For buyers and sellers in O’Fallon, these numbers provide a solid foundation for understanding current market dynamics, especially when compared to the wider St. Louis metropolitan area.

O’Fallon in Context: How the Local Market Compares

O’Fallon’s median sold price of $380,000 stands 21.3 percent above the St. Louis metro area’s median of $305,000 for the most recent reported month, September 2026. This price difference is a key consideration for buyers evaluating where to focus their search and for sellers gauging their home’s potential market value. In September 2026, O’Fallon saw a median sold price of $370,000 across 137 closed sales. That month’s price was up 2.59 percent from $360,660 in September 2025, but down 4.50 percent from $387,450 in August 2026. Sales volume in September 2026 was 137 homes, up 17.09 percent from 117 a year earlier, indicating increased activity despite the month-to-month price dip.

Currently, there are 531 homes on the market in O’Fallon, with a median asking price of $425,000. The area has a months of supply figure of 3.88, which is just under the four-month threshold that is generally considered a sellers market. For comparison, the St. Louis metro area as a whole has 12,360 homes on the market and a median days on market of 54, while O’Fallon’s median days on market is 72. This means homes in O’Fallon are taking longer to sell than the metro average, a factor both buyers and agents should keep in mind when preparing listings or making offers.

What Buyers and Sellers Should Know Right Now

For those considering buying in O’Fallon, the current median asking price of $425,000 is notably higher than the median sold price, which may reflect seller expectations or recent market shifts. The 3.88 months of supply suggests that competition remains present, but the increased days on market could offer buyers more negotiating room than in faster-moving areas. With the going 30 year fixed mortgage rate at 7.48 percent, affordability is an important factor for buyers to consider as they calculate monthly payments and long-term costs.

Sellers in O’Fallon should note the stable median sold price and increased sales volume as positive indicators, but also recognize that homes are spending a median of 72 days on the market. Pricing competitively and preparing homes for sale can be crucial in this environment. Real estate agents working in O’Fallon, including those with MORE, REALTORS®, can use these data points to guide their clients with factual, up-to-date information and realistic expectations about timing and pricing.

Overall, O’Fallon’s housing market remains active, with prices holding above the regional average and sales volumes on the rise. Both buyers and sellers should stay informed on local trends and work closely with real estate professionals to navigate the current landscape.