This paper examines the role of poverty ideology in determining whether a teacher comes to teach at a poor school (presence) and whether s/he remains at this type of school over time (persistence). A sample of 400 teachers in San Diego California was administered a questionnaire that evaluated respondents' attitudes toward poverty. Teachers who believed poverty was rooted in social structure were more apt to be present in and to persist at poor schools. It is argued that this presence and persistence in poor schools was because these teachers had developed a "structurally mitigated sense of occupational competence". This sense of competence made these teachers more likely to understand the problems they encountered in the classroom in structural terms, and thus they were more likely to be both satisfied with and persist at their jobs.