In 1844 Jack Hodges from Georgia and Addison Nunn from Tennessee arrived with their families to the southwest corner of Lawrence County, where they staked a claim of land and settled. but Sharp county was formed the settlement became part of it, and changed its name to Sidney. The descendants of the Nunn family still lives in Sidney and the present day mayor is married to one of them. Earlier Sidney was a farming community known for its watermelons, cattle, chicken and cotton but today most residents of Sidney work within the industry.
Today Sidney has a post office, a bank, two churches, a grocery store and a nursing home. The popluation was in year 2000 about 275.