John Wayne Airport is an international airport in an unincorporated area in Orange County, California, with its mailing address in the city of Santa Ana, which is also the county seat, hence the International Air Transport Association (IATA) airport code. The main entrance to the airport is off of MacArthur Blvd in Irvine, the city that abuts the airport from the north and east. Newport Beach and Costa Mesa form the southern and western boundaries, respectively, together with a small unincorporated area along the Corona del Mar (73) Freeway. Santa Ana lies just north, not actually touching the airport directly.
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