|Ownership and usage||Airports||Heliports||STOLports||Seaplane bases||Total|
|Open to public||103||3||0||1||107|
|Closed to public||9||47||1||0||57|
|Open to public||23||0||0||1||24|
|Closed to public||340||230||12||43||625|
1 Data 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.