sentences:  The population density was 720.4 people per square mile (278.5/km²).There were 749 housing units at an average density of 338.5/sq mi (130.9/km²).The racial makeup of the city was 39.77% White, 58.72% Black or African American, 0.38% Native American, 0.63% from other races, and 0.50% from two or more races.