It is located 1 nautical mile (1.9 km; 1.2 mi) southwest[1] of the unincorporated town of Hanapepe on the south shore of the island of Kauaʻi.

[2] The 1928 the Territorial legislature allotted $15,000 to establish an airport on Kauaʻi, and purchased land at its present site.

[3] Port Allen Airport covers an area of 179 acres (72 ha) at an elevation of 24 feet (7.3 m) above mean sea level.

[4] For the 12-month period ending December 31, 2008, the airport had 5,535 aircraft operations, an average of 15 per day: 59% air taxi, 40% general aviation, and 1% military.

The governor appoints the Director of the Hawai'i State Department of Transportation who has jurisdiction over the Hawaiʻi Airports Administrator.