 cottage grove is a town in henry county, tennessee. the population was 88 at the 2010 census.tennessee department of economic and community development, certified population of tennessee incorporated municipalities and counties, state of tennessee official website, 14 july 2011. retrieved: 6 december 2013. ==geography== cottage grove is located at  (36.378609, -88.480293). according to the united states census bureau, the town has a total area of , all land. ==demographics== {{us census population |1910=215 |1920=210 |1930=188 |1940=1
Towns_in_Henry_County,_Tennessee Towns_in_Tennessee