[4] Cumberland County comprises the Crossville, TN micropolitan statistical area.

[5] Cumberland County was formed in 1856 from parts of Bledsoe, Roane, Morgan, Fentress, Rhea, Putnam, Overton, and White.

They raised funds by a lottery and completed a project that built a wagon road.

This slightly improved travel, but still required a bone jarring trip.

The road was often muddy and crossed stone slabs so that it was only passable in some places on foot.

Reportedly wagons could not get down the steep grade at Spencer's Mountain without locking brakes on all wheels and dragging a tree behind to slow the descent.

Cumberland Mountain State Park was built as part of this project.

The county is home to a number of karst formations, most notably at Grassy Cove, a large, closed depression located southeast of Crossville.

All of the water draining into Grassy Cove flows underground through a large cave system and emerges 4 miles southwest at the head of the Sequatchie Valley to form the Sequatchie River.

As of the 2020 United States census, there were 61,145 people, 25,801 households, and 17,692 families residing in the county.

Like all of East Tennessee, Cumberland County is powerfully Republican, and has generally been favorable to the party since the Civil War.