Buchanan Dam, TX
Buchanan Dam is a census-designated place (CDP) in Llano County, Texas, United States. The population was 1,688 at the 2000 census.
Buchanan Dam is located at 30°45′52″N 98°27′15″W / 30.764459°N 98.454175°W / 30.764459; -98.454175 (30.764459, -98.454175), on the south shore of Lake Buchanan.
According to the United States Census Bureau, the CDP has a total area of 20.1 square miles (52.2 km2), of which, 7.6 square miles (19.7 km2) of it is land and 12.5 square miles (32.5 km2) of it (62.21%) is water.