St. Charles County property tax
Homeowners in St. Charles County, Missouri typically pay about 1.08% of their home's value in property tax each year — a median bill of $3,480 on a median home value of $320,800.
Typical effective rate
1.08%
higher than 30% of U.S. counties
Median tax paid
$3,480
per year
Median home value
$320,800
In MO
#4
of 115 ranked counties
At a glance
- Effective rate 1.08% — 16% higher than the U.S. median of 0.94%, and 28% higher than the Missouri median of 0.85%.
- With vs. without a mortgage — median tax $3,522 for mortgaged homes, $3,382 for homes owned outright.
- State ranking — 4th highest effective rate of 115 ranked Missouri counties; nationally it sits around the 70th percentile.
Estimate a bill for St. Charles County
Apply this county's typical effective rate (1.08%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in St. Charles County, MO?
The typical effective property-tax rate in St. Charles County is 1.08% of a home's value per year, based on median taxes paid ($3,480) divided by the median home value ($320,800) in the Census ACS 2020–2024 5-year estimates. This is a typical burden for comparison, not a statutory mill rate.
How much is property tax on a typical home in St. Charles County?
The median owner-occupied home in St. Charles County is valued at $320,800, and the median real estate tax paid is $3,480 per year. Homes with a mortgage have a median tax of $3,522, versus $3,382 for homes without one.
How does St. Charles County compare to the rest of Missouri?
St. Charles County's effective rate is 28% higher than the Missouri median, ranking 4th of 115 ranked counties in the state.
Compare nearby Missouri counties
Counties ranked closest to St. Charles County by in-state effective rate. Open the comparison tool or see all Missouri counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 1 | St. Louis County | 1.20% | $3,335 |
| 2 | Atchison County | 1.16% | $1,241 |
| 3 | Jackson County | 1.12% | $2,575 |
| 5 | Clay County | 1.07% | $2,941 |
| 6 | Platte County | 1.05% | $3,613 |
| 7 | St. Louis city | 1.03% | $2,033 |
Official data & resources for St. Charles County
- St. Charles County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for St. Charles County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for St. Charles County — median home value.
- Federal forms & is property tax deductible? — IRS Pub 530, Schedule A and the SALT cap, plus your state tax agency.
Finding your exact bill
Your county or municipal assessor (sometimes called the appraisal district, property appraiser, or tax collector) sets the assessed value and the exact millage that produces your bill. Search for "[county name] [state] assessor" or "property tax" on an official .gov site.
Figures on this page are Census survey medians for the whole county (2020–2024 5-year), not an assessment of any individual property. Rates, exemptions and assessment practices vary by municipality and school district within a county.