Platte County

== English == === Proper noun === Platte County One of 114 counties in Missouri, United States. County seat: Platte City. Named after either the Platte River or the Platte Purchase. One of 93 counties in Nebraska, United States. County seat: Columbus. Named after the Platte River. One of 23 counties in Wyoming, United States. County seat: Wheatland. Named after the North Platte River.