Table 1.

U.S. general-purpose area-based geodemographic classifications available in 2012

Name	Level 1	Level 2	Micro level	Variables	Taxonomic units	Commercial	SME
Mosaic USA, Experian	19	71		~3,001	ZIP + 4, block group, and ZIP code	Y	N
Nielsen PRIZM	142 or 113	66		Hundreds	Block group, ZIP +4, and larger units	Y	N
Tapestry, ESRI	124 or 115	65		~60	Block group and larger units	Y	N
PSYTE Advantage, Pitney Bowes		72	400		Block group	Y	N
STI Landscape, Synergos Technologies	15	72			Block group	Y	Y
Cohorts, IXI Corporation		30				Y	N
Cameo, Callcredit Information Group	9	52			Block group	Y	N
Acxiom, Personicx	21	70				Y	N
Patchwork Nation, Jefferson Institute	12			125	County	N	N/A
American Clusters, Worldclusters	7	18			Block group	N	N/A

Note: SME = small to medium-sized enterprise.