
Chicago 1930 census pdf#
The maps included in the PDF files are based on the census tract's boundaries for a given year.
Chicago 1930 census archive#
The name of the zip archive is, for example, "ct_chicago_il_pdf.zip." It contains the name of MSA (i.e., Chicago) and the 2-letters state code (i.e., il). Zip archive consists of the set of the maps, plots, and summary tables in PDF and MS Excel format prepared for the metropolitan statistical area (MSA) and the main county within MSA (for example, files for Chicago, IL MSA, and Cook County, IL).It contains the name of MSA (i.e., Chicago) and the 2-letters state code (i.e., il). The name of the zip archive is, for example, "norm_chicago_il. Maps of other variables (i.e., percentage of a given race) can be easily obtained using the GIS software. The default spatial display is the map of diversity/dominant race types. In our dataset, all census tracts were harmonized to 2010 boundaries to unable tracking changes between years at the neighborhood level.

Chicago 1930 census series#
EXAMPLES OF YEAR-TO-YEAR COMPATIBLE MAPS FOR SELECTED CITIESĬlick on the name of the city to open a PDF file with the series of diversity/dominant race types maps showing how the racial topography change over the years. (paper submitted to Historical Methods: A Journal of Quantitative and Interdisciplinary History). Stepinski (2020) Mapping changes in racial composition in the United States using US census tract historical data.

Comparing the maps between years, viewers have to keep in mind two main changes in the race categorizations: To show how race composition changes in US major cities, we use a diversity/dominant type map because it presents the most information in a single map. The classification for years 1980-2010 uses five racial categories (Non-Hispanic Whites, Non-Hispanic Blacks, Non-Hispanic Asians (including American Indians), Non-Hispanic Others, and Hispanic/Latino origin population). Thus, we use two sets of racial classification. The classification for years 1910-1970 uses three racial categories (White, Blacks, Asians (including also American Indians)). Our goal is to use a single classification over this entire period.

Census classification of race/ethnicity has changed over the 1910-2010 period. Each series starts from the earliest year for which racial data (at the census tract level) is available for a given city (no later than 1950) and continues until 2010. This website provides year-to-year compatible map series showing the evolution of racial geography in 63 major American cities (a complete list of MSA is available here).
