|Ownership and usage||Airports||Heliports||Seaplane bases||Total|
|Open to public||101||0||3||104|
|Closed to public||3||21||0||24|
|Open to public||25||0||8||33|
|Closed to public||197||106||4||309|
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.