Mountrail County, ND Property Tax: $1,172/yr (2026)
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The effective property tax rate in Mountrail County is 0.53% of assessed home value. On a home at the county median value of $222,200, that works out to about $1,178 per year, or $98 per month. Mountrail County is located in western North Dakota, and is home to approximately 9,567 residents.
About Mountrail County
Mountrail County covers approximately 1,825.2 square miles in North Dakota. The county is home to about 9,567 residents living in roughly 5,073 housing units, of which 45.4% are owner-occupied. The median household income is $81,292, and the median home was built in 1989.
Mountrail County borders Burke County, Dunn County, McKenzie County, McLean County, Ward County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in North Dakota
Property taxes in North Dakota are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in North Dakota offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Mountrail County Assessor's office to learn which exemptions apply to your property and when to file.
Mountrail County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Mountrail County, ND | 0.53% | $222,200 | $1,178 |
| North Dakota state average | 0.89% | — | $1,978* |
| Burke County | 0.68% | $141,900 | $968 |
| Dunn County | 0.60% | $244,000 | $1,473 |
| McKenzie County | 0.41% | $357,300 | $1,473 |
| McLean County | 0.75% | $233,100 | $1,748 |
| Ward County | 1.07% | $259,100 | $2,785 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Mountrail County's median home value of $222,200. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Mountrail County's property tax rate compare to the rest of North Dakota?
At 0.53%, Mountrail County is lower than the North Dakota state average of 0.89%. On a home at the county median of $222,200, that means about $1,178 per year — versus $1,978 at the state average rate, a difference of $800 per year. Compared to the national average of 1.10%, Mountrail County is below average.
What's a typical annual property tax bill in Mountrail County?
For a home at the county median value of $222,200, the annual property tax in Mountrail County is approximately $1,178 — or about $98 per month. For a home worth $333,300, expect around $1,766 per year. For a $444,400 home, approximately $2,355 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Mountrail County property tax assessment?
Property assessment appeals in Mountrail County are handled by the Mountrail County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Mountrail County?
North Dakota counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 0.53% shown here. Contact the Mountrail County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File