![]() Note that many years are greyed out - this means that no data are available for those years at the Census tract level. Decennial, non-decennial, and 5-year ranges are available for Census tracts. Years: The year(s) for which you would like to request data. To reproduce the example in this section, click “CENSUS TRACT” then “SUBMIT.” Keep in mind that not all geographic levels will be available for all variables and all years. NHGIS includes a series of filters to help you choose the correct level of aggregation click the plus sign to select it. Geographic levels: the level of aggregation for your data. Other government data resources are also addressed at the end of the chapter.įigure 11.1: NHGIS data browser interfaceĪ series of options on the left-hand side of your screen. ![]() It highlights packages such as censusapi, which allows for programmatic access to all US Census Bureau APIs, and lehdr, which grants access to the LEHD LODES dataset for analyzing commuting flows and jobs distributions. The second part of this chapter covers R workflows for Census data resources outside the decennial US Census and American Community Survey. To reproduce, readers should follow the steps provided to sign up for an IPUMS account and download the data themselves. Due to the size of the datasets involved, these datasets are not provided with the sample data available in the book’s data repository. The first part of this chapter provides an overview of how to access and use historical US Census datasets in R with NHGIS, IPUMS, and the ipumsr package. While tidycensus focuses on these core datasets, other R packages provide support for the wide range of datasets available from the Census Bureau and other government agencies. ![]() While both of these data repositories have typically attracted researchers using commercial software such as ArcGIS (for NHGIS) and Stata/SAS (for IPUMS), the Minnesota Population Center has developed an associated ipumsr R package to help analysts integrate these datasets into R-based workflows.Īdditionally, the US Census Bureau publishes many other surveys and datasets besides the decennial US Census and American Community Survey. However, analysts and historians may be interested in accessing data from much earlier - perhaps all the way back to 1790, the first US Census! Fortunately, these historical datasets are available to analysts through the National Historical Geographic Information System (NHGIS) project and the Minnesota Population Center’s IPUMS project. These datasets are available through the US Census Bureau’s APIs and in turn accessible with tidycensus and related tools. Most of the examples covered in the book to this point use data from recent US Census Bureau datasets such as the Decennial Census since 2000 and the American Community Survey. ![]() 11 Other Census and government data resources ![]()
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