Census 2000 will initiate another decade of reapportionment. Most of this effort will be undertaken with the assistance of specialized GIS software that will track some easily quantifiable variables like population, demographics, and geography. Since the mid-1990s a series of Supreme Court decisions has started to develop the notion of "community of interest" as an additional criterion of fair districting. It is a hard-to-quantify concept and hard to map. This paper explores some techniques borrowed from remote sensing approaches and map algebra, topics not yet part of the redistricting literature, to shed additional light on the community of interest problem by casting it as a multispectral classification problem. This makes possible the identification of homogeneous communities.