St. Charles County Property Tax Rate
Missouri
St. Charles County, Missouri has an effective property tax rate of 1.08%, which is 17% higher than the national average of 0.92%. On a home valued at $320,800, homeowners pay approximately $3,480 per year in property taxes. St. Charles County ranks #4 out of 115 counties in Missouri for property tax rates.
$3,480
Per year
$320,800
2024 estimate
3.32%
Median income: $104,692
#4
of 115 counties in MO
Tax Breakdown
With Mortgage
$3,522
median annual tax
Without Mortgage
$3,382
median annual tax
Homeowners with a mortgage in St. Charles County pay on average $140 more per year than those without. This difference often reflects how property tax escrow accounts in mortgaged homes capture the full tax obligation.
How St. Charles County Compares
Top Counties in Missouri
Historical Property Tax Trends
| Year | Median Tax | Median Home Value | Effective Rate |
|---|---|---|---|
| 2020 | $2,811 | $230,100 | 1.22% |
| 2021 | $2,941 | $242,700 | 1.21% |
| 2022 | $3,196 | $278,300 | 1.15% |
| 2023 | $3,340 | $296,800 | 1.13% |
| 2024 | $3,480 | $320,800 | 1.08% |
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates
Missouri Property Tax Exemptions
Available to St. Charles County homeowners
Property Tax Credit
Up to $750 for renters; up to $1,100 for homeowners
Homeowners age 65+ or disabled with income under $30,000
Disabled Veteran
100% exemption from property taxes
Veterans with 100% service-connected disability rated as totally and permanently disabled
Property Tax Calculator
Estimate your annual property tax in St. Charles County
Estimated Annual Property Tax
$3,240
$270/month · Rate: 1.08%
Nearby Counties
Quick Facts
Think your property tax is too high?
Homeowners save an average of $1,148/year by appealing their assessment.
Learn How to Appeal →Cities in St. Charles County
Explore property tax data for 4 cities in St. Charles County, Missouri.
| City | Annual Tax | Rate |
|---|---|---|
| O'Fallon | $3,501 | 1.15% |
| St. Charles | $2,989 | 1.06% |
| St. Peters | $3,000 | 1.19% |
| Wentzville | $3,585 | 1.18% |
Frequently Asked Questions
Data Source: U.S. Census Bureau, 2024 American Community Survey 5-Year Estimates. Effective tax rates are calculated by dividing median real estate taxes paid by median home value. Actual property tax rates may vary based on local taxing jurisdictions, exemptions, and assessment practices. This information is for general reference only and should not be used as a substitute for professional tax advice.