[2] The county is named in honor of General Nathanael Greene.

It was named after General Nathanael Greene, a hero in the Revolutionary War.

Previously, court was held in a log cabin southeast of Jefferson.

The present Greene County Courthouse used today was built in 1917.

[12] As of the census[13] of 2000, there were 10,366 people, 4,205 households, and 2,859 families residing in the county.

29.10% of all households were made up of individuals, and 16.60% had someone living alone who was 65 years of age or older.

The population ranking of the following table is based on the 2020 census of Greene County.