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