Arranged in volumes by United States and states. 1990 Census of Housing-Detailed Housing Characteristics. Arranged in volumes by United States and states. Tape File 1 A . Discs are arranged by regions.
Data ranges from state level down to block group level.
It is less detailed, but contains no sampling data. See an example of STF 1-A data for Arizona here . Discs are arranged by States, or groups of states. Highly detailed data on geography ranging from state to block group levels. See an example of STF 3-A data for Arizona here .