|Ownership and usage||Airports||Heliports||STOLports||Seaplane bases||Total|
|Open to public||136||0||0||2||138|
|Closed to public||4||7||0||1||12|
|Open to public||6||0||0||12||18|
|Closed to public||234||45||1||59||339|
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.