Home and mortgage
St. Charles County, MO Property Tax Calculator
St. Charles County homeowners pay a median $3,480 a year in property tax, 1.08% of a median $320,800 home: above Missouri's 0.85% and the national 0.94%.
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Property tax in St. Charles County by home value, at 1.08%
| Home value | A year | A month |
|---|---|---|
| $160,000 | $1,736 | $145 |
| $240,000 | $2,604 | $217 |
| $320,000 | $3,472 | $289 |
| $480,000 | $5,208 | $434 |
| $640,000 | $6,944 | $579 |
St. Charles County against Missouri and the US
| Effective rate | Median tax | Median home value | Median household income | |
|---|---|---|---|---|
| St. Charles County | 1.08% | $3,480 | $320,800 | $104,692 |
| Missouri | 0.85% | $1,948 | $230,300 | $70,702 |
| United States | 0.94% | $3,119 | $332,700 | $80,734 |
How this calculator works
Median real estate taxes paid ÷ median home value in St. Charles County, from the Census Bureau's American Community Survey 2020–2024 5-year estimates. The calculator starts at the county's median home value and rate.
Questions people ask
What is the property tax rate in St. Charles County?
The effective rate is 1.08%: a median $3,480 a year on a median $320,800 home. That's the 3rd highest of the 22 Missouri counties we cover.
How much is property tax on a $400,000 house in St. Charles County?
About $4,340 a year, $362 a month, at the county's effective rate, before any exemption.
How does St. Charles County compare with the rest of Missouri?
Its rate is above the state's 0.85%. Across Missouri, covered counties range from 0.55% to 1.21%.
How do I lower my St. Charles County property tax?
Apply for every exemption you qualify for, such as a homestead exemption, and appeal your assessment if it is higher than comparable homes sold nearby; the county assessor explains the deadlines.
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Updated by the RateHerald team. The maths is tested against worked examples; report a problem.