Kearney County was formed in 1860 and was named after Fort Kearny, which in turn was named after Brigade General Stephen W. Kearny. Area Page: Central South East Nebraska AreaCounty Seat: Minden NebraskaLicense Platte Prefix: 52Census 2010: 6,489Cities Towns in the County: Minden NebraskaCounty Map with Cities: Kearney County MapWebsite - County: Kearney County Nebraska Official Website