Its governing structure was not established at that time, nor was the territory attached to another county for administrative and judicial purposes.

Grand Forks County lies on the east side of North Dakota.

The Red River flows northward along the county's east border, on its way to Lake Winnipeg and Hudson Bay.

The Forest River flows eastward and northward across the upper western part of the county.

The terrain of Grand Forks County consists of low rolling hills, devoted to agriculture except around urban areas.

[5] The terrain slopes to the north and east; its highest point is a hill at its southwestern corner, at 1,450 ft (440 m) ASL.

[7] The University of North Dakota has established a Field Biology Station on Forest River, at the county's northern border.

In 2013 it partnered with ND Game & Fish Department to establish a 160-acre (0.65 km2) wildlife management area at the station, to monitor whitetail deer activity in the forest.

A total of 498 plants have been collected at the Forest River Biology Station and Wildlife Management Area.

Source:[5] Like all parts of North Dakota other than areas with reservations, Grand Forks County voters historically and currently vote Republican at the presidential level.