In Nevada, casinos are not sorted by county or city, but rather by how they report to the Gaming Control Board. Some smaller cities such as Carson City, Wendover, and Mesquite, however, are home to some of the highest revenue-generating casinos in Nevada. There are four main casino cities in Nevada, and those are Las Vegas, Lake Tahoe, Laughlin, and Reno. There are over 400 casinos in the state, and this does not include those places like gas stations with a few slot machines. The regulations of the Gaming Control Board define casinos as a business with a table game or over 15 slot machines.Ī gas station with a couple of slot machines, for example, does not count as a casino unless it has over 15 slot machines.