01
Fort Zumwalt Park
A 48-acre park at 1000 Jessup Lane with Lake Whetsel (about 3.5 acres), a disc golf course, a rebuilt War of 1812 fort site and the Heald Home, dated to about 1884.
Area guidesSt. Charles County
O'Fallon
O'Fallon is a St. Charles County city west of St. Louis that was platted along a new railroad line in the 1850s and incorporated in 1912.
Median sale price
$395K
3 months ending Jul 2026
Compared with last year
+5.3%
median price
Median days on market
8
was 6 a year ago
Homes sold in July
382
was 334 a year ago
The market right now
O'Fallon home values and how fast homes sell.
Fast8 days, median
SlowerFaster
Homes here are moving quickly, so your first week on the market matters most.
I'll show you the recent sales closest to your home and what you could walk away with, in writing.
Figures: Redfin, 3 months ending Jul 2026, retrieved September 2026. Medians describe the whole market, not any one home. They are not a prediction.
Before you buy or sell
Worth knowing in O'Fallon.
Rules change. Confirm with the city before you rely on them.
Inspection at sale
The City of O'Fallon Building Division requires a residential rental occupancy permit before a rental unit is occupied. The city's building page does not state any occupancy inspection requirement for the sale of an owner-occupied home.
02
Water comes from City of O'Fallon Water and Sewer, Missouri American Water or Public Water Supply District No. 2. Sewer is City of O'Fallon or Duckett Creek Sanitary District. The city lists its own trash and recycling collection.
03
The city lists six fire protection districts: O'Fallon, Central County Fire & Rescue, Cottleville, Lake Saint Louis, New Melle and Wentzville.
04
The city offers an online Floodplain Map Lookup by address. It is for reference only and is not an official flood determination.
05
City property maintenance guidelines include no chipped or peeling exterior paint, no missing shingles, and grass and weeds no taller than eight inches.
What it's built like, and how you get around.
The homes
The city's history page says the first subdivisions began around 1956, when the population was 1,357.
City websiteThe city says infrastructure improvements in the mid-1990s supported residential, retail and manufacturing growth. The city now covers about 30 square miles.
City website
Getting around
O'Fallon lies along Interstates 64 and 70 between Lake St. Louis and St. Peters.
Wikipedia
Parks and places.
Scroll sideways
Schools
Public school districts serving O'Fallon.
District lines don't always follow city lines. Confirm the district for a specific address with the district itself. For school data, see the state's Missouri school report cards.
What is the median home price in O'Fallon, MO in 2026?
+
The median sale price in O'Fallon was $395K for the three months ending Jul 2026, up 5.3% from a year earlier. Homes sold in a median of 8 days. Source: Redfin MLS-based data, retrieved September 2026.
Which public school district serves O'Fallon?
+
O'Fallon addresses are served by Fort Zumwalt School District, Francis Howell School District and Wentzville R-IV School District. District lines don't always follow city lines, so confirm the district for a specific address before you make an offer.
Is there an occupancy permit or inspection when a home sells in O'Fallon?
+
The City of O'Fallon Building Division requires a residential rental occupancy permit before a rental unit is occupied. The city's building page does not state any occupancy inspection requirement for the sale of an owner-occupied home. Rules change, so confirm with the city before you rely on this.
St. Louis, Missouri
Know the neighborhood before you choose it.
Also:Chesterfield ·Creve Coeur ·Central West End ·Lafayette Square ·St. Charles ·Lake St. Louis
South County and South City:Concord ·Mehlville ·Oakville ·Affton ·Lindenwood Park
Thinking about O'Fallon?
Buying or selling, I'll show you the numbers in writing before you decide anything. No pressure, no obligation.
See my numbersOr ask me a question, or call (314) 597-7494.