Homeowners in O'Fallon, Missouri paid a median $3,609 a year in property tax on a median home worth $326,200, an effective rate of about 1.11% (Census 2020–2024).
1.08%St. Charles County overall
O'Fallon vs county, state and US
Effective rate
Median tax paid per year
Tax on a home in O'Fallon
At the local 1.11% effective rate
| Home value | Estimated yearly tax | Per month |
|---|---|---|
| $150,000 | $1,660 | $138 |
| $250,000 | $2,766 | $230 |
| $350,000 | $3,872 | $323 |
| $500,000 | $5,532 | $461 |
Buying a home in St. Charles County? 2026 loan limits
Nearby and related
- St. Charles County property taxcounty overview
- Missouri property tax by countyranked
- St. Charles, MO1.05% effective
- St. Peters, MO1.19% effective
- Wentzville, MO1.14% effective
- Lake St. Louis, MO1.10% effective
- Dardenne Prairie, MO1.06% effective
- Cost of living in Missouriprices & rents
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25103 (median real estate taxes paid), B25077 (median home value), B25003, B25088, B19013 and B01003. These are 2020–2024 medians reported by owner-occupants, not 2026 tax bills or official mill rates. The effective rate here is median tax ÷ median home value. Actual bills depend on assessed value, exemptions (homestead, senior, veteran) and local levies. Check with your county assessor or treasurer. Not tax advice.
Major Cities & Counties in Missouri
Largest by population (Census ACS 2020–2024). Property tax for each:
- Kansas City pop. 510,612
- St. Louis pop. 288,512
- Springfield pop. 169,954
- Columbia pop. 128,548
- Independence pop. 121,740
- Lee's Summit pop. 103,656
- St. Charles pop. 71,508
- St. Joseph pop. 71,236
- Blue Springs pop. 59,965
- St. Louis County pop. 995,569
- Jackson County pop. 719,976
- St. Charles County pop. 414,535
- Greene County pop. 303,375
- St. Louis city pop. 288,512
- Clay County pop. 258,122
- Jefferson County pop. 229,458
- Boone County pop. 188,043
- Jasper County pop. 124,357
- Cass County pop. 110,773
Frequently asked questions
What is the property tax rate in O'Fallon, Missouri?
Homeowners in O'Fallon, Missouri paid a median $3,609 a year in property tax on a median home worth $326,200, an effective rate of about 1.11% (Census 2020–2024).
How much is property tax on a $250,000 home in O'Fallon?
About $2,766 a year at the 1.11% median effective rate. Exemptions such as homestead can lower it.
Is property tax in O'Fallon higher than the rest of Missouri?
O'Fallon ranks #382 lowest of 485 Missouri places we track. The statewide effective rate is 0.85%. St. Charles County overall is 1.08%.