Lake St. Louis property tax, in one number.
The typical Lake St. Louis homeowner pays $4,448 a year on a $405,900 home. That's close to the St. Charles County rate (1.08%) and above the U.S. rate (0.94%).
Estimate my taxLake St. Louis at a glance
Five numbers that shape a typical property tax bill here.
Property tax calculator
Enter a home value to see a typical yearly bill at Lake St. Louis's average effective rate, or pick another area.
- Mortgage holders pay more.Homes with a mortgage paid a median $4,514, versus $4,208 for homes owned outright, often because they're newer, higher-value or more recently reassessed.
- Share of income.The median bill equals about 3.5% of the median household income of $125,693.
The data, charted
Effective rate compared
Owners vs renters
Cities in St. Charles County
Lake St. Louis compared
| Area | Median tax | Home value | Rate |
|---|---|---|---|
| Lake St. Louis | $4,448 | $405,900 | 1.10% |
| St. Charles County | $3,480 | $320,800 | 1.08% |
| Missouri | $1,948 | $230,300 | 0.85% |
| United States | $3,119 | $332,700 | 0.94% |
Other cities in St. Charles County
Effective property tax rates nearby.
Nearby
- St. Charles County1.08% · $3,480
- St. Peters1.19% · $3,207
- Wentzville1.14% · $3,782
- O'Fallon1.11% · $3,609
- Dardenne Prairie1.06% · $4,569
- St. Charles1.05% · $3,126
- Madison County1.92% · $3,319
- Jersey County1.76% · $3,020
- Calhoun County1.39% · $2,644
- St. Louis County1.20% · $3,335
- Franklin County0.80% · $1,813
- Lincoln County0.74% · $1,811
Good to know
What is the property tax rate in Lake St. Louis?
The effective rate is about 1.10%. The median homeowner pays $4,448 a year on a home worth a median $405,900 (ACS 2020–2024). The legal tax rates set by each taxing unit are different numbers; the effective rate is what owners actually pay as a share of value.
How much is property tax on a $400,000 home in Lake St. Louis?
About $4,400 a year, or roughly $367 a month, at Lake St. Louis's average effective rate of 1.10%. Homestead, senior, veteran or other exemptions can lower the real bill, and a recent purchase or reassessment can raise it.
Why is my bill different from this estimate?
Your bill depends on your home's assessed value from the county assessor, the exact taxing units where you live (county, city, school district, special districts) and any exemptions you get. These figures are medians across all owner-occupied homes, not a bill for any address.
How current is this data?
It comes from the U.S. Census Bureau's American Community Survey 5-year estimates for 2020–2024, the latest release. Homeowners report the taxes they paid, so the numbers lag current bills by one to two years. We update the site when the Census Bureau publishes new estimates each December.
More: St. Charles County · all Missouri counties · calculator for any county