Papillion is a city in Sarpy County in the U.S. state of Nebraska. It is the county seat of Sarpy County. Papillion is a suburb of neighboring Omaha. The population was 23,739 in 2009, surpassing Norfolk as the 9th largest city in Nebraska. In 2009, Papillion was named the #3 best place to live in the United States by Money Magazine, surpassing its 2007 ranking of #6.
Papillion (sometimes referred to as "Papio" by it's residents) is one of the last of the great, late 18th-Century Paris-inspired frontier cities left in the Midwest. Halleck Park, a recreation area in the heart of the city, includes many trails, open spaces, trees and a number of areas of interest, including Papio Fun Park, Papio Bay Aquatic Park, Papio Pool, and Papio Bowl. In addition to trails, trees and much green space, inside the park there are tennis courts, volleyball courts, playgrounds, "The Duck Pond", Monarch Field ("The Pit"), and E.A. Fricke Field. There are also nine other baseball diamonds within the park for youth. The baseball diamonds are spread across three fields: Halleck, Blonde, and Papio Bay. Village Park, Papio Bay Aquatic Center (including two water slides and a zero depth pool) and Walnut Creek recreational park round out just a few of the many parks and recreational interest points of the city. Papillion Junior High School is in the downtown area south of Papio Creek; the building was the high school until August 1971 while the old junior high was directly west, across the street. Also downtown is the Old A.W. Clarke banking house, Sump Memorial Library, City Hall, Portal One-Room School House, Papillion Municipal Building (Sarpy County Courthouse until 1970), and the John Sutter House.
Other areas of interest in Papillion include Sarpy County Court House and Jail, Shadow Lake Towne Center, and Midlands Hospital all along Nebraska Highway 370 in the southern portion of the city.