Gene Locke got the black precincts (which are traditionally Dem) so obviously he’ll get some heavy Dem areas. There are no traditional conservative areas in the city with the exception of Kingwood and Memorial areas. Annise won because she got gays and white liberals. She probably did get some help from Roy “Pay to play” Morales’s mailer though.
Locke, like Ray Nagin built a coalition among blacks and white conservatives. That formula works in New Orleans, but not Houston.