Sheridan is a city in Sheridan County, Wyoming, United States. The 2010 census put the population at 17,444 and a Micropolitan Statistical Area of 29,116. It is the county seat of Sheridan County. According to the United States Census Bureau, the city has a total area of 8.5square miles (22.0Square kilometers), of which, 8.46square miles (22.0Square kilometers) of it is land and 0.04squaremiles (0.1Square kilometer) of it (0.24%) is water.As Sheridan was ranked number one by the True West Magazine in 2006 for the top western towns and then ranked sixth in the January/February 2007 issue, it is a vacation destination as well as a travel stop due to its proximity to Interstate 90 and U.S. Route 14. The city was named after General Philip Sheridan, Union cavalry leader in the American Civil War.