Find out the list of Wyoming counties in alphabetical order, including their size, seats and numbers. The U.S. state of Wyoming has 23 counties; here is a detailed list in alphabetical order: A Albany County, WY B Big Horn County, WY C Campbell County, WY Carbon County, WY Converse County, WY Crook County, WY F Fremont County, WY G Goshen County, WY H Hot Springs County, WY J Johnson County, WY L Laramie County, WY Lincoln County, WY N Natrona County, WY Niobrara County, WY P Park County, WY Platte County, WY S Sheridan County, WY Sublette County, WY Sweetwater County, WY T Teton County, WY U Uinta County, WY W Washakie County, WY Weston County, WY List of Wyoming counties in printable and scannable format A Albany County, WY B Big Horn County, WY C Campbell County, WY; Carbon County, WY; Converse County, WY; Crook County, WY F Fremont County, WY G Goshen County, WY H Hot Springs County, WY J Johnson County, WY L Laramie County, WY; Lincoln County, WY N Natrona County, WY; N...