According to the United States Census Bureau, the town has a total area of 2.0square miles (5.2Square kilometers), all land. Lusk experiences a dry continental climate with cold, dry winters and hot, wetter summers. Lusk is a town in Niobrara County, Wyoming, United States. The population was 1,447 at the 2000 census. It is the county seat of Niobrara County. The town was laid out in June 1886 by engineers working on the Wyoming Central Railway. It was named after Frank S. Lusk , a renowned Wyoming rancher and Wyoming Central stockholder.