Lewis and Clark County, MT property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in Lewis and Clark County is 0.81%, above the Montana median of 0.75% and below the national median of 0.98%. The median homeowner pays $2,886 a year on a home worth $358,200.
- Effective rate
- 0.81%
- Median annual bill
- $2,886
- Median home value
- $358,200
- Rank in Montana
- 24of 52
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $1,620 | $135 |
| $300,000 | $2,430 | $203 |
| $400,000 | $3,240 | $270 |
| $500,000 | $4,050 | $338 |
| $750,000 | $6,075 | $506 |
| $1,000,000 | $8,100 | $675 |
Lewis and Clark County compared with Montana and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Lewis and Clark County | 0.81% | $2,886 | $358,200 |
| Montana median | 0.75% | $2,535 | $338,100 |
| 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 Lewis and Clark County, MT?
The median effective property tax rate in Lewis and Clark County is 0.81% of home value, above the Montana median of 0.75% and below the national median of 0.98%. The median homeowner pays $2,886 a year on a median home value of $358,200 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in Lewis and Clark County?
About $3,240 per year at the county's median effective rate of 0.81%, 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 Lewis and Clark County compare with the rest of Montana?
Lewis and Clark County ranks 24 of 52 Montana counties by effective rate. The Montana median is 0.75% and the median bill is $2,535.