Thomasville Depot Thomasville has preserved one of Georgia's most impressive train stations, the former Atlantic Coast Line depot constructed south of downtown in 1916. The city was at the junction of two important ACL lines, an east-west line from Montgomery to Savannah and a north-south connection from Albany to Florida. Thomasville (pop. 18,000) is the county seat of Thomas County in south Georgia.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home