This report sets the 1990-91 baseline from which the nation's urban public schools will measure their progress on the six National Urban Education Goals. The report contains four major chapters measuring the status of urban schools using various indicators. The first chapter presents data on the demographics of city schools and compares those urban characteristics to the nation at large. The second chapter is divided into six parts, each devoted to one of the National Urban Education Goals and each presenting data aggregated across all urban school districts for the 1990-91 school year. The third chapter presents data on various characteristics of urban public schools that might be of general interest. The fourth chapter presents data on the revenues and expenditures of urban schools, with comparisons to national averages. These chapters are followed by a chapter that describes data strengths and limitation, summary of future plans, keyed to the content of the previous chapters. Finally, the report contains city-by-city profiles with data on demographics, the six goals, system characteristics, and funding. At the end are two fold-outs: the first shows aggregate data across all the Great City Schools and the second shows data on national averages. Included are 6 tables, 98 figures, and footnotes describing the tables and figures. (JB)