Dulles, Virginia Postal Service to allow Sterling businesses and residents to use Dulles as an alternative address. The USPS defines Dulles as an "acceptable" city name for the 20166 zip code, whose "actual" city name is Sterling. The addresses for shipping parcels to United States embassies and consulates, as well as their employees worldwide, are located in Dulles. The USPS city name for zipcode 20189 is Dulles. Washington Dulles International Airport is located partially in Dulles (although its postal address uses the Sterling name instead) and partially in Fairfax County. The community derives its name from the airport; the airport in turn
Orange City Municipal Airport Orange City Municipal Airport Orange City Municipal Airport is a city-owned public-use airport located one nautical mile (1.85 km) south of the central business district of Orange City, a city in Sioux County, Iowa, United States. This airport is included in the FAA's National Plan of Integrated Airport Systems for 2009–2013, which categorized it as a "general aviation" facility. Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, this facility is assigned ORC by the FAA but has no designation from the IATA (which assigned ORC to Orocue Airport in Orocue, Colombia). Orange City