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