Er bestaan 12 plaatsen met de naam Ontario in Amerika.
Alle plaatsen in de wereld die "Ontario" heten.
Riverside (46)
Centerville (43)
Fairview (40)
Midway (39)
Franklin (39)
Union (37)
Greenwood (37)
Marion (36)
Glendale (36)
Salem (36)
Liberty (35)
Lincoln (35)
Fairfield (35)
Pleasant Valley (35)
Georgetown (35)
Oakland (35)
Greenville (34)
Bethel (34)
Springfield (34)
Clinton (34)
Florence (34)
Arlington (34)
Kingston (33)
Clifton (33)
Milton (33)
Hamilton (33)
Newport (33)
Farmington (33)
Chester (33)
Lakeview (32)