The Gay and Lesbian Atlas, by demographer Gary Gates and researcher Jason Ost, is the first book to give a detailed geographic account of America's gay and lesbian households. Published by the Urban Institute Press, The Gay and Lesbian Atlas mines Census 2000 data on the characteristics of 594,391 same-sex unmarried partner couples, offering a unique statistical portrait that confirms some anecdotal perceptions of this understudied community and challenges others. These fact sheets encapsulate findings from the Atlas regarding the location patterns of various kinds of gay and lesbian households.