Princeton Municipal Airport is a city owned public use airport located one nautical mile (1.85 km) southwest of the central business district of Princeton, a city in Mille Lacs County, Minnesota, United States. This airport is included in the FAA's National Plan of Integrated Airport Systems 2015-2019, which categorizes it as a general aviation airport.Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned PNM by the FAA but has no designation from the IATA.HistoryThe Federal Aviation Administration relocated the flight service station (FSS) for Minnesota to Princeton in 1987. The airport was completely renovated in 1988.Facilities and aircraftPrinceton Municipal Airport covers an area of 304acre at an elevation of 980 feet (299 m) above mean sea level. It has one runway designated 15/33 with an asphalt surface measuring 3,900 by 75 feet (1,189 x 23 m).