This research effort examines inequalities in educational input resources among school systems in Texas and California in light of the Rodriguez and Serrano court cases. Low-income families in both states were found to be in districts of low per-pupil-Expenditures and inferior educational services primarily because they are located in districts with low property valuations. Mexican-American pupils in Texas tend to be ethnically isolated in low-wealth districts and have fewer educational resources available to them than do Anglo pupils. Important differences were found between Texas and California in regard to ethnic isolation. Since Mexican-American pupils in California are not concentrated in predominantly ethnic districts, not much interethnic disparity in the distribution of educational resources among districts was found. Black pupils in both Texas and California are concentrated in large urban centers where expenditures are generally at or above the state average. These findings, however, do not take into consideration cost differentials between urban and nonurban areas and municipal overburden. The hypothesis that black pupils in large urban districts are disadvantaged by intradistrict inequalities is offered for further research. (Author/IRT)