Cottleville property tax: where it goes
A typical Cottleville house pays about $5,220 a year on the property tax bill, including flat charges on the same bill. Estimated from public rates, not anyone's actual bill.
A Cottleville house pays 6.272% of its taxable value in property tax, plus flat charges on the same bill. For a house at $82,726 of value before exemptions, that's about $5,216 a year.
Tax is levied on Residential property is assessed at 19 percent of its true value in money. Rates are per $100 of assessed valuation..
The county's 2026 tax rate chart was not published when checked; the 2025 chart is the latest. The April 2026 Cottleville fire district ballot item may change the fire levy once the 2026 chart is out.
Pay or manage it
Who taxes this house
| Taxing agency | Rate | On $82,726 |
|---|---|---|
| City of Cottleville | 0.231% | $191 |
| State of Missouri | 0.03% | $25 |
| St. Charles County road and bridge | 0.1687% | $140 |
| St. Charles County library | 0.1668% | $138 |
| St. Charles County ambulance | 0.3175% | $263 |
| St. Charles County developmental disability | 0.1068% | $88 |
| St. Charles County dispatch and alarm | 0.0324% | $27 |
| Fort Zumwalt R-II School District (schools) | 4.1262% | $3,413 |
| Cottleville Fire Protection District | 0.9356% | $774 |
| St. Charles Community College | 0.1569% | $130 |
| Duckett Creek sewer lateral assessment | flat | $28 |
| Total | 6.272% | $5,216 |
2025 tax year, St. Charles County (Fort Zumwalt R2 school, Cottleville fire district, city of Cottleville).
Ways to pay less
- Seniors 62+: County property tax relief credit. St. Charles County residents at least 62 years old and living at the property as of Jan. 1, 2026 can apply for a credit on their tax bill. How: Apply or renew every year.
Dates
| When | What |
|---|---|
| Dec 31: Real estate tax bills due (in 57 days) | Tax bills are mailed by Dec. 1. Tax payments are due Dec. 31. |
Sources
Checked October 31, 2026. Every number here comes from the public sources listed, matched by our checker.
Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.
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