O Fallon, MO Property Tax Rates
Compare property tax rates across 2 ZIP codes in O Fallon, Missouri.
Avg Tax Rate
1.15%
Avg Annual Tax
$3,521
Avg Home Value
$305,800
ZIP Codes
2
Property Tax Overview: O Fallon, MO
O Fallon has 2 ZIP codes with property tax data. The average effective tax rate across these ZIPs is 1.15%, which is 48% above the Missouri average of 0.78%. Annual property taxes range from $3,759 (ZIP 63368) to $3,282 (ZIP 63366).
For a home at O Fallon's median value of $305,800, property taxes add approximately $293/month to housing costs. O Fallon home values are above the Missouri median of $175,936, meaning the monthly tax impact is correspondingly higher.
Property tax rates within O Fallon vary by 0.01 percentage points across its ZIP codes. This variation typically reflects different school district boundaries, special assessment zones, and municipal service areas within the city.
City tax notebook
How to compare ZIPs inside O Fallon
This city page groups O Fallon ZIPs into buyer tasks so you can compare neighborhoods before opening individual ZIP calculators.
Complete rows
2/2
Rate spread
0.01 pts
Counties
1
Highest bill checks
ZIPs where escrow estimates deserve the closest parcel verification.
Lower-rate options
City ZIPs with lower effective rates than their neighbors.
O Fallon vs Missouri Average
Effective Tax Rate
48% above state average
Annual Property Tax
Median Home Value
Frequently Asked Questions
What is the average property tax rate in O Fallon, MO?
The average effective property tax rate in O Fallon, Missouri is 1.15%, based on 2 ZIP codes.
How much is property tax in O Fallon, MO?
The average median annual property tax in O Fallon is $3,521 per year, with a median home value of $305,800.
Which ZIP code in O Fallon has the lowest property tax rate?
ZIP code 63368 has the lowest effective tax rate in O Fallon at 1.15%, with a median annual tax of $3,759.
How many ZIP codes are in O Fallon, MO?
O Fallon, Missouri has 2 ZIP codes with property tax data available.
Which ZIP code in O Fallon has the highest property tax rate?
ZIP code 63366 has the highest effective tax rate in O Fallon at 1.16%, with a median annual tax of $3,282.
How do O Fallon property taxes compare to the Missouri average?
O Fallon's average effective rate of 1.15% is 48% above the Missouri state average of 0.78%.
What factors affect property tax rates between ZIP codes in O Fallon?
Property tax rate differences within O Fallon are typically driven by school district boundaries (which can account for 40–60% of a tax bill), special assessment zones for fire, water, or transit services, and whether a ZIP falls within city limits or an unincorporated area. Each taxing jurisdiction sets its own rate, which is why adjacent ZIP codes can have noticeably different effective rates.
Tips for O Fallon Homeowners
- •Appeal your assessment: If your home is assessed higher than its market value, you can file a property tax appeal. Studies suggest 30–60% of properties are over-assessed. Most counties offer a free informal review process.
- •Check your exemptions: Homestead exemptions can reduce your taxable value and are available to primary residents in most states. Senior, veteran, and disability exemptions may also apply. Exemptions must typically be applied for — they are not automatic.
- •Know your assessment cycle: Missouri reassesses properties periodically. After buying a home, your next tax bill may reflect a new assessment based on your purchase price. Budget accordingly, especially if you bought above prior assessed values.
- •Compare ZIP codes before buying: Even within O Fallon, effective tax rates can vary significantly across ZIP codes due to different school district overlays. Use PropertyTaxByZip to compare specific ZIPs before choosing a neighborhood.
Looking for county-level property tax data? View St. Charles County on TaxByCounty.com
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.