Palacios Municipal Airport (IATA: PSX, ICAO: KPSX, FAA LID: PSX) is a city-owned, public-use airport located three nautical miles (6 km) northwest of the central business district of Palacios, a city in Matagorda County, Texas, United States.

[1] It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.

As a result of World War II, Palacios Army Airfield was constructed in 1943 and opened in August by the United States Army Air Forces as a maintenance depot and supply facility for Air Technical Service Command.

At the end of the war the airfield was determined to be excess by the military and turned over to the local government for civil use.

[3] [4] Palacios Municipal Airport covers an area of 1,538 acres (622 ha) at an elevation of 14 feet (4 m) above mean sea level.