|Ownership and usage||Airports||Heliports||STOLports||Seaplane bases||Total|
|Open to public||93||0||0||0||93|
|Closed to public||5||4||0||0||9|
|Open to public||36||0||0||4||40|
|Closed to public||309||82||0||12||403|
1Data are current as of Jan. 31, 2002.
KEY: STOLport = Short take-off and landing airport.
NOTE: Publicly owned facilities are open for public use with no prior authorization or permission. Publicly owned facilities closed to the public include medical, law enforcement, and other such facilities.
SOURCE: U.S. Department of Transportation, Federal Aviation Administration, Office of Airports, Airport Safety Data Branch.