The paper examined: (1) the relationship between research into municipal services equalization and current explanations of internal colonialism, and (2) some aspects of the dynamic of racial exclusion and inequality in San Antonio, Texas. Data were obtained from research reviews, census figures, and city, county, and State sources. Characteristics of the internal colonial explanation discussed were electoral and administrative exclusion of Chicanos, a lack of any meaningful self-government in the barrios, an historical policy of official containment of the barrio population and a current private perpetuation of that containment, and consistently inequitable city policies whose effects are experienced by ethnically and linguistically distinct peoples residentially segregated. The paper also argues that the: (1) internal colonial explanation(s) merits further substantiating research and investigation in light of the tentative municipal service research findings, and (2) institutions and processes of domination are subtle, pervasive, and inextricably intertwined between the public and private sectors. (NQ)