Pembina county is the northeasternmost of North Dakota's counties with Cavalier acting as the county seat. The county population on July 1, 1999, was 8,351, a decrease of 887 over the 1990 census.
The Pembina River enters the county and flows easterly across the northern section while the Tongue River flows northeasterly. Both rivers empty into the Red River of the North which forms the county's eastern boundary.
Outdoor lovers have access to Icelandic State Park in west central Pembina county. In addition, a visit to the Gingras Trading Post State Historic Site will be of interest to history buffs.