There is one place named Duncan Municipal Airport in America.
All places in the world called "Duncan Municipal Airport".
Riverside (46)
Centerville (43)
Fairview (40)
Midway (39)
Franklin (39)
Union (37)
Greenwood (37)
Glendale (36)
Salem (36)
Marion (36)
Lincoln (35)
Fairfield (35)
Pleasant Valley (35)
Georgetown (35)
Oakland (35)
Liberty (35)
Greenville (34)
Bethel (34)
Springfield (34)
Clinton (34)
Arlington (34)
Florence (34)
Clifton (33)
Milton (33)
Hamilton (33)
Newport (33)
Farmington (33)
Chester (33)
Kingston (33)
Lakeview (32)