Altha is a town located in Calhoun County, in the state of Florida (FL), United States. Nestled in the South Atlantic division of the South region, it covers an area of 1.4 square miles (4.0 km²) and sits at an elevation of 209 ft. With a population of approximately 506 residents, Altha offers a peaceful, rural atmosphere.
The town's population is composed of about 48.62% males and 51.38% females, and it has a population density of 353.85 people per square mile (136.62/km²). Altha lies at a latitude of 30.57 and a longitude of -85.13, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (41.9%), followed by English (4.7%), German (12.6%), and Scotch-Irish (3.4%) heritage. The town is identified by the ZIP code 32421.