COUNTY · ND

Mountrail County, North Dakota

Mountrail County is a county in North Dakota with FIPS code 38061 and an estimated population of 9,383 (Census 2023), 16th largest of 53 in the state.

County facts

Name
Mountrail County
State
North Dakota
Type
county
FIPS code
38061
State FIPS
38
Population (2023)
9,383
Change since 2020
-4.1%
State rank
16 of 53

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in North Dakota

Questions

What is the FIPS code for Mountrail County?

Mountrail County, North Dakota has the five-digit FIPS code 38061: 38 for the state and 061 for the county.

What state is Mountrail County in?

Mountrail County is in North Dakota.

How do I know if an address is in this county?

Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.

Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.