High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Lyon County is a county located in the U.S. state of Kentucky. As of 2000, the population was 8,080. Its county seat is Eddyville. The county is named for Chittenden Lyon. It is a limited dry county, meaning that the sale of alcoholic beverages is prohibited except by the drink in restaurants in the city of Kuttawa that seat at least 100 diners and derive at least 70% of total sales from food.