St. Louis County Property Tax Calculator
The St. Louis County Assessor's Office values residential property on a two-year reassessment cycle, as set by Missouri law, and county, municipal, and school district levies get billed against that figure. Missouri also taxes personal property such as vehicles separately from real estate, both administered through the same office. Above, target St. Louis County in the calculator, then provide a home value for a projected sum.
Annual Property Tax
$3,147Monthly (Escrow)
$262Effective Rate
1.14%St. Louis County's effective rate (1.14%) is 28% higher than the Missouri average (0.89%).
Edit inputs ↑St. Louis County Effective Rate
1.14%
Vs. Missouri Average
28% higher
Missouri National Rank
#23 of 51
1 = highest statewide rate
County Median Home Value
$276,800
Estimated Annual Tax (Median Home)
$3,147
Monthly Equivalent
$262
Property tax in St. Louis County, Missouri
- The St. Louis County Assessor's Office reassesses residential real estate on a two-year cycle rather than annually, holding values steady in the off years.
- County, municipal, and school district levies are each applied to the assessed value to produce your total bill.
- Owners can appeal a new assessment informally with the assessor's office, then formally to the county Board of Equalization.
- Missouri offers a property tax credit for qualifying seniors and disabled residents that can offset a portion of what's owed.
Other large Missouri counties
Effective rate = aggregate real-estate taxes paid ÷ aggregate home value (ACS 2024 5-year).
| County | Effective Rate | Median Home Value |
|---|---|---|
| Jackson County | 1.13% | $230,500 |
| Clay County | 1.06% | $275,600 |
| St. Charles County | 1.06% | $320,800 |
| Atchison County | 1.05% | $106,800 |
| Platte County | 1.04% | $345,100 |
See property tax across every county in Missouri at the Missouri property tax calculator , or check your Missouri income tax with the Missouri income tax calculator .
Frequently asked questions
How is property tax calculated in St. Louis County?
The St. Louis County Assessor's Office fixes a residential value on Missouri's two-year reassessment cycle, and county, municipal, and school district levies are each billed against that figure, combining into your annual statement.
How do I appeal my St. Louis County assessment?
A conversation with the assessor's office after a reassessment notice is the easy first step; a formal case moves to the county Board of Equalization if the disagreement isn't resolved that way.
Does St. Louis County offer property tax relief?
Missouri's property tax credit program can offset a portion of what qualifying seniors and disabled residents owe, though it's a state-administered credit rather than a homestead exemption reducing assessed value directly.
Why does my St. Louis County value only update every two years?
Missouri law sets a two-year reassessment cycle for real estate rather than requiring annual reappraisal, so your assessed value typically holds steady in the off year unless the property changes significantly or you pursue a successful appeal.
Sources
Related insights
Use these guides for rule explanations, planning context, and follow-up questions beyond the calculator result.