Rare U.S. surnames

Surname frequency based on U.S. Census Bureau surname data. Rank 1 is the most common surname in the imported Census file.

Rank	Surname	Count	Rarity
121,590	COLLAO	142	Very Rare
121,590	COLLO	142	Very Rare
121,590	COLMORE	142	Very Rare
121,590	COMPAGNER	142	Very Rare
121,590	CONSOLVER	142	Very Rare
121,590	CONTRADA	142	Very Rare
121,590	CONZETT	142	Very Rare
121,590	CORNTHWAITE	142	Very Rare
121,590	COSCA	142	Very Rare
121,590	COSKY	142	Very Rare
121,590	COWLIN	142	Very Rare
121,590	CRAYTHORN	142	Very Rare
121,590	CRISSON	142	Very Rare
121,590	CROSETTO	142	Very Rare
121,590	CRYAR	142	Very Rare