Slope County, North Dakota Cities (2026)

2 cities

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density
Area (mi²)
Type
Marmarth191100-1.09%353 City
Amidon221240%331 City

Slope County Cities Summary

Largest City

Marmarth is the largest city in Slope County, with a population of 91.

Smallest City

Amidon is the smallest city in Slope County, with a population of 21.

10 Largest Cities

There are 2 cities in Slope County, North Dakota.

Location of Slope County