Princeton Municipal Airport (ICAO: KPNM, FAA LID: PNM) 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.

[5] The Federal Aviation Administration relocated the flight service station (FSS) for Minnesota to Princeton in 1987.

[6] Princeton Municipal Airport covers an area of 304 acres (123 ha) at an elevation of 980 feet (299 m) above mean sea level.

[2] For the 12-month period ending August 31, 2005, the airport had 13,300 aircraft operations, an average of 36 per day: 98% general aviation and 2% military.

At that time there were 34 aircraft based at this airport: 85% single-engine, 3% multi-engine, 3% helicopter and 8% ultralight.