Lake St Louis, St. Charles County, Missouri Property Taxes
Property Taxes in Lake St Louis, Missouri
Median Lake St Louis, Missouri effective property tax rate: 1.30%, significantly higher than the national median of 1.02%, and higher than the Missouri state median of 1.25%.
Median Lake St Louis, Missouri home value: $769,710
Median annual Lake St Louis, Missouri tax bill: $10,027, $7,627 higher than the national median property tax bill of $2,400.
How are property taxes in St. Charles calculated?
Property taxes in Lake St Louis, Missouri are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Lake St Louis's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Lake St Louis, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Lake St Louis, St. Charles County, Missouri Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.3%
Estimate Property Tax Bill
$10,006
$9,286
How Does the Lake St Louis Property Tax Calculator Work?
Use this Lake St Louis property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Lake St Louis's median effective tax rate of 1.30% — based on actual property records in St. Charles County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Lake St Louis's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Lake St Louis: rates range from 1.30% in 63367 to 1.30% in 63367, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Lake St Louis.
About Lake St Louis Property Taxes
About Property Taxes in Lake St Louis, St. Charles, Missouri
Lake St Louis's median effective property tax rate of 1.30% is higher than the Missouri state median of 1.25% and higher than the national median of 1.02%. This rate reflects the St. Charles County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Lake St Louis. Homeowners in the 63367 ZIP code carry a median effective rate of 1.30%, while those in 63367 pay 1.30%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across St. Charles County. Understanding which part of Lake St Louis you live in can make a meaningful difference to your annual tax bill.
Lake St Louis homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the July 13, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Lake St Louis, St. Charles County, Missouri
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Lake St Louis's effective property tax rate to other cities in Missouri and the median property tax rates in Missouri and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Lake St Louis Tax Rate
1.30%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective St. Charles County Tax Rate
1.26%
Median Effective Missouri Tax Rate
1.25%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Lake St Louis, St. Charles County, Missouri
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 63367 | 1.28% | 1.30% | 1.30% | 1.30% | 1.30% |
Source: Ownwell
Property Tax Assessment Values Across Lake St Louis, St. Charles County, Missouri
When examining property taxes in Lake St Louis, Missouri, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The St. Charles County appraisal district estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In St. Charles County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of April.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. The median home price in Lake St Louis is $769,710, and the median tax bill is $10,027, compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400. In 63367, the highest median home price is $769,710.
Property Tax Assessment Values Across Lake St Louis, St. Charles County, Missouri
Source: Ownwell
$10,000
$389,855
$769,710
Median Lake St Louis Market Value
$769,710
Median St. Charles County Market Value
$292,700
Median Missouri Market Value
$136,526
Median United States Market Value
$235,294
Property Tax Assessment Values Across Lake St Louis, St. Charles County, Missouri
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 63367 | $203,989 | $699,850 | $769,710 | $810,453 | $932,164 |
Source: Ownwell
Property Tax Bills Across Lake St Louis, St. Charles County, Missouri
How are property tax bills calculated in Lake St Louis?
Property tax bills in Lake St Louis are based on the assessed value of a home, which is tied to its market value and the tax rate set by local taxing authorities. The median home price is $769,710, and that value helps explain why bills are relatively high compared with the national median property tax bill of $2,400 and national median property tax rate of 1.02%.
What factors affect the final bill?
Local budgets, school districts, and other taxing jurisdictions all influence the amount homeowners owe. In St. Charles County, the median property tax bill is $10,027, while the 25th percentile is $9,121 and the 75th percentile is $10,558. At the 90th percentile, bills reach $12,137.
How does this affect homeowners?
Higher assessed values can lead to larger annual tax bills, which can significantly increase housing costs for homeowners in Lake St Louis.
Property Tax Bills Across Lake St Louis, St. Charles County, Missouri
Source: Ownwell
$116
$5,072
$10,027
Median Lake St Louis Tax Bill
$10,027
Median St. Charles County Tax Bill
$3,678
Median Missouri Tax Bill
$1,684
Median United States Tax Bill
$2,400
Property Tax Bills Across Lake St Louis, St. Charles County, Missouri
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 63367 | $2,457 | $9,121 | $10,027 | $10,558 | $12,137 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 13 |
Links | |
|---|---|
| St. Charles Tax Assessor | |
| Website | mo-stcharles-assessor.publicaccessnow.com |