Wheatland is a town in and the county seat of Platte County in southeastern Wyoming, United States. The population was 3,548 at the 2000 census. According to the United States Census Bureau, the town has a total area of 4.2square miles (11.0Square kilometers), all land. As of the census of 2000, there were 3,548people, 1,539households, and 980 families residing in the town. The population density was 837.6 people per square mile (323.1Square kilometers). There were 1,764housing units at an average density of 416.4per square mile (160.6Square kilometers).