Tenn. Code Ann. § 57-3-805

The premises of a retail food store wine license may be located in a municipality or the unincorporated areas of a county; provided, that such county or municipality has approved sales of wine by retail food stores by local option election pursuant to § 57-3-801. If a county-wide referendum is approved under this part, the premises of a retail food store wine license may be located in any municipality that participated in the referendum regardless of the minimum population requirement for a municipality in § 57-3-101.