Table 1:

Index of Concentration at the Extremes (ICE)

Measure	Formula	ACS Table Numbers
ICE (high vs. low income)	(high-income households – low-income households)/Total households	B19001
ICE (NHW vs. NHB)	(NHW persons – NHB persons)/Total population	B03002
ICE (NHW vs. Hispanic)	(NHW persons – Hispanic persons)/Total population	B03003
ICE (high-income NHW vs. low-income NHB)	(High-income NHW households – low-income NHB households)/Total households	B19001, B19001H, B19001B
ICE (high-income NHW vs. low-income Hispanic)	(High income NHW households – low-income Hispanic households)/Total households	B19001, 19001H