|Ownership and usage||Airports||Heliports||STOLports||Seaplane bases||Total|
|Open to public||220||0||0||6||226|
|Closed to public||8||86||0||0||94|
|Open to public||37||0||0||1||38|
|Closed to public||274||297||2||4||577|
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.