63304 Sales Tax Rate
ZIP code 63304 (Cottleville, MO) covers 6 sales tax areas with combined rates from 5.95% to 9.95%. See the state, county, city and special district breakdown and calculate the tax. Rates effective October 2026.
ZIP code 63304 crosses city and county lines, so it can have more than one sales tax rate. The rates below belong to the cities and county areas that overlap this ZIP code (based on U.S. Census Bureau ZIP Code Tabulation Areas). Use the calculator with your city, or the state's official address lookup, for an exact address.
Tax area 1: Cottleville, St. Charles County
- State tax
- 4.225%
- County tax (St. Charles)
- 1.725%
- City tax (Cottleville)
- 2%
- Special district tax
- 2%
- Combined rate
- 9.95%
Tax area 2: Cottleville, St. Charles County
- State tax
- 4.225%
- County tax (St. Charles)
- 1.725%
- City tax (Cottleville)
- 2%
- Special district tax
- 1%
- Combined rate
- 8.95%
Tax area 3: Cottleville, St. Charles County
- State tax
- 4.225%
- County tax (St. Charles)
- 1.725%
- City tax (Cottleville)
- 2%
- Special district tax
- 0.5%
- Combined rate
- 8.45%
Tax area 4: Cottleville, St. Charles County
- State tax
- 4.225%
- County tax (St. Charles)
- 1.725%
- City tax (Cottleville)
- 2%
- Special district tax
- 0%
- Combined rate
- 7.95%
Tax area 5: Weldon Spring, St. Charles County
- State tax
- 4.225%
- County tax (St. Charles)
- 1.725%
- City tax (Weldon Spring)
- 1.5%
- Special district tax
- 0%
- Combined rate
- 7.45%
Tax area 6: Unincorporated St. Charles County
- State tax
- 4.225%
- County tax (St. Charles)
- 1.725%
- City tax
- 0%
- Special district tax
- 0%
- Combined rate
- 5.95%