Sheridan is a city in Sheridan County, Wyoming, United States. The population was 15,804 at the 2000 census. It is the county seat of Sheridan CountyGR6. Sheridan is located at 44°47′48″N, 106°57′32″W (44.796720, -106.958970)GR1. According to the United States Census Bureau, the city has a total area of 22.0 km˛ (8.5 mi˛). 22.0 km˛ (8.5 mi˛) of it is land and 0.1 km˛ (0.04 mi˛) of it (0.24%) is water.

As of the censusGR2 of 2000, there were 15,804 people, 7,005 households, and 4,062 families residing in the city. The population density was 718.7/km˛ (1,862.4/mi˛). There were 7,413 housing units at an average density of 337.1/km˛ (873.6/mi˛). The racial makeup of the city was 95.93% White, 0.22% African American, 0.97% Native American, 0.46% Asian, 0.20% Pacific Islander, 0.85% from other races, and 1.37% from two or more races. Hispanic or Latino of any race were 2.64% of the population.