Drawing on the concept of sexual geography, this study examines the social and political meanings of sexualized spaces in the urban geography of Portland, Oregon between 1970 and 2010. This includes an examination of the sexual geography of urban spaces as a deliberate construct resulting from official and unofficial public policy and urban planning decisions. Sexual geographies, the collective and individual constructions of sexuality, are not static. Nor are definitions of deviant sexual practices fixed in the collective consciousness. Both are continuously being reshaped and reconstructed in response to changing economic structures and beliefs about sex, race and class. Primary documents are used to build a conceptual geography of sexualized spaces in Portland at points between 1970 and 2010 with an emphasis on the policy and urban planning decisions that inform the physical designations and social meanings of sexualized spaces including prostitution zones, pornography districts and gay entertainment areas.