Tennessee County was organized in 1788 from a portion of Davidson County. It was abolished in 1796 when Tennessee (which by then was no longer a North Carolina territory, having been ceded to the national government as the U.S. Territory South of the River Ohio) was admitted to statehood and the county's name was adopted for the entire state. At the time of statehood, the lands formerly included in Tennessee County were divided into Montgomery and Robertson counties. The land area formerly included in Tennessee County now forms Humphreys, Montgomery, and Robertson counties and portions of Stewart, Dickson, Cheatham, and Houston counties.
- See Ramsey's Annals of Tennessee to the End of the Eighteenth Century (1853), page 739; Origins of Tennessee County Names in Tennessee Blue Book; Tennessee Records in the North Carolina State Archives; and History of Tennessee Counties, by Karon M. Bosze, created in 1993 and revised 1996.
- See Origins of Tennessee County Names in Tennessee Blue Book (which identifies the older counties from which new counties were formed).
See also 
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