Washington County, MO property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in Washington County is 0.58%, below the Missouri median of 0.88% and below the national median of 0.98%. The median homeowner pays $682 a year on a home worth $118,400.
- Effective rate
- 0.58%
- Median annual bill
- $682
- Median home value
- $118,400
- Rank in Missouri
- 94of 115
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $1,160 | $97 |
| $300,000 | $1,740 | $145 |
| $400,000 | $2,320 | $193 |
| $500,000 | $2,900 | $242 |
| $750,000 | $4,350 | $362 |
| $1,000,000 | $5,800 | $483 |
Washington County compared with Missouri and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Washington County | 0.58% | $682 | $118,400 |
| Missouri median | 0.88% | $1,887 | $215,600 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in Washington County, MO?
The median effective property tax rate in Washington County is 0.58% of home value, below the Missouri median of 0.88% and below the national median of 0.98%. The median homeowner pays $682 a year on a median home value of $118,400 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in Washington County?
About $2,320 per year at the county's median effective rate of 0.58%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does Washington County compare with the rest of Missouri?
Washington County ranks 94 of 115 Missouri counties by effective rate. The Missouri median is 0.88% and the median bill is $1,887.