Stapleton, Denver Lake Nature Center, one of the nation's largest urban wildlife refuges. As of 2018, Stapleton has a population of around 75,000 residents living amongst 23,500 households. The Northfield section of the development (north of Interstate 70) still has significant residential and commercial development occurring today. The University of Colorado A-Line directly connecting Denver Union Station downtown to Denver International Airport started operating in 2016 and has one stop in Stapleton; the Central Park Station. Stapleton is served by the Central Park commuter rail and bus station, with direct connections to Union Station in downtown and the Denver International Airport via
Wilmington International Airport using YS-11, FH-227 and Boeing 737 aircraft. Piedmont was acquired by USAir in 1989; USAir was renamed US Airways in 2005, and merged with American Airlines in 2015. In addition to flights to its main regional hub at Charlotte Douglas International Airport, US Airways introduced three daily flights between Wilmington and La Guardia Airport in New York City during the 2000s following lobbying from the Wilmington community. US Airways also introduced nonstop service to Ronald Reagan Washington National Airport in March 2011. American Eagle began service between Wilmington and Chicago O'Hare International Airport in July 2011 after the airport authority