According to the United States Census Bureau, the city has a total area of 6.2 square miles (16Square kilometers), of which, 6.2 square miles (16Square kilometers) of it is land and 0.04 square miles (0.10Square kilometers) of it (0.64%) is water.The City of Coleman is served by the Coleman Independent School District, which has about 1000 students. During the 2006-2007 academic year, there were 475 students in elementary schools, 203 in junior high, and 300 in high school. Coleman is a city in Coleman County, Texas, United States. The population was 5,127 at the 2000 census. It is the county seat of Coleman County.