Casper

Casper is the only city in Natrona County, Wyoming, United States, although the county is home to a number of small towns and Casper suburbs. With a population of 49,644, according to the 2000 census, the medium-sized city is located in east-central Wyoming off Interstate 25, and is the county seat of Natrona County. Casper is the second largest city in Wyoming, after the capitol city of Cheyenne with 53,011 inhabitants. Area Code: 307