Bloomburg is a town in Cass County, Texas, United States.

Bloomburg is 7 miles (11 km) east of Atlanta, and is home to the Cullen Baker Country Fair, held every year on the first Saturday in November.

According to the United States Census Bureau, the town has a total area of 1.0 square mile (2.6 km2), all land, with the eastern city limits within one-half mile of the Arkansas state line.

As of the 2020 United States census, there were 321 people, 169 households, and 107 families residing in the town.

The racial makeup of the town was 80.27% White, 17.60% African American, 0.80% Pacific Islander, 1.33% from other races.