This collection consists of annual statewide aggregates for a variety of bank market structure variables in the United States. The data span 60 years from 1896 to 1955 and include information for all 50 states. These time-series data, collected in 1992-1994, pertain to historical bank market structure, soundness, and performance. Balance sheet data are presented for national and non-national banks, while income statement data are available only for national banks. Other variables include state population, state branching law, total loans, total deposits, number of national banks, and bank debits.