Uvalda is a city in Montgomery County, Georgia, United States. The population was 439 at the 2020 census, down from 598 in 2010. The …Uvalda is a city in Montgomery County, Georgia, United States. The population was 439 at the 2020 census, down from 598 in 2010. The community derives its name from Juan de Ugalde, a Texas pioneer. The Georgia General Assembly incorporated Uvalda as a town in 1910.