Buna ( BEW-nə) is an unincorporated community and census-designated place (CDP) in Jasper County, Texas, United States. The population was 2,142 at the 2010 census.
The Beaumont Lumber Company mill in southern Jasper County was first called "Carrolla" for the Carroll family, prominent Beaumont lumbermen and industrialists. The site was subsequently renamed "Buna", however, in honor of one of the family's cousins, Buna Corley.
Buna is located in southern Jasper County at 30°26′22″N 93°57′58″W (30.439390, -93.966199). U.S. Route 96 runs along the west side of the community, leading north 16 miles (26 km) to Kirbyville and 35 miles (56 km) to Jasper, the county seat. US-96 leads southwest from Buna 9 miles (14 km) to Evadale and 35 miles (56 km) to Beaumont. Texas State Highway 62 leads southeast 17 miles (27 km) to Mauriceville.
According to the United States Census Bureau, the Buna CDP has a total area of 6.0 square miles (15.6 km2), of which 0.004 square miles (0.01 km2), or 0.08%, are water. The community sits on a low watershed divide, with the west side of town draining to the Neches River and the east side draining to the Sabine River.
As of the census of 2000, there were 2,269 people, 865 households, and 626 families residing in the CDP. The population density was 381.4 people per square mile (147.2/km2). There were 956 housing units at an average density of 160.7/sq mi (62.0/km2).