COUNTY · ND

Slope County, North Dakota

Slope County is a county in North Dakota with FIPS code 38087 and an estimated population of 674 (Census 2023), 53rd largest of 53 in the state.

County facts

Name
Slope County
State
North Dakota
Type
county
FIPS code
38087
State FIPS
38
Population (2023)
674
Change since 2020
-4.1%
State rank
53 of 53

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in North Dakota

Questions

What is the FIPS code for Slope County?

Slope County, North Dakota has the five-digit FIPS code 38087: 38 for the state and 087 for the county.

What state is Slope County in?

Slope 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.