- To provide gridded demographic data, including characteristics of age, race, ethnicity, and housing, for the United States.
- U.S. Census Grids (Summary File 1), 1990 contain grids of demographic and socioeconomic data from the year 1990 U.S. census in ASCII and geotiff formats. The grids have a resolution of 30 arc-seconds (0.0083 decimal degrees), or approximately 1 square km. The gridded variables are based on census block geography from Census 1990 TIGER/Line Files and census variables (population, households, and housing variables). This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN).
- Recommended Citation(s)*:
Seirup, L., G. Yetman, and L. Razafindrazay. 2012. U.S. Census Grids (Summary File 1), 1990. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). http://dx.doi.org/10.7927/H4TB14TN. Accessed DAY MONTH YEAR.
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