St. Charles County, MO property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in St. Charles County is 1.13%, above the Missouri median of 0.88% and above the national median of 0.98%. The median homeowner pays $3,340 a year on a home worth $296,800.
- Effective rate
- 1.13%
- Median annual bill
- $3,340
- Median home value
- $296,800
- Rank in Missouri
- 4of 115
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $2,260 | $188 |
| $300,000 | $3,390 | $282 |
| $400,000 | $4,520 | $377 |
| $500,000 | $5,650 | $471 |
| $750,000 | $8,475 | $706 |
| $1,000,000 | $11,300 | $942 |
St. Charles County compared with Missouri and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| St. Charles County | 1.13% | $3,340 | $296,800 |
| Missouri median | 0.88% | $1,887 | $215,600 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in St. Charles County, MO?
The median effective property tax rate in St. Charles County is 1.13% of home value, above the Missouri median of 0.88% and above the national median of 0.98%. The median homeowner pays $3,340 a year on a median home value of $296,800 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in St. Charles County?
About $4,520 per year at the county's median effective rate of 1.13%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does St. Charles County compare with the rest of Missouri?
St. Charles County ranks 4 of 115 Missouri counties by effective rate. The Missouri median is 0.88% and the median bill is $1,887.