https://jacciz.r-universe.devRecent package updates in jaccizR-universehttps://github.com/jacciz.pnghttps://jacciz.r-universe.devThu, 29 Jan 2026 22:51:48 GMTjacciziebert@gmail.com (Jacci Ziebert)The boundaries for geographical units in the United States of America contained in this package include state, county, congressional district, and zip code tabulation area. Contemporary boundaries are provided by the U.S. Census Bureau (public domain). Historical boundaries for the years from 1629 to 2000 are provided form the Newberry Library's Atlas of Historical County Boundaries (licensed CC BY-NC-SA). Additional data is provided in the USAboundariesData package; this package provides an interface to access that data.https://github.com/r-universe/ropensci/actions/runs/39017145588Thu, 29 Jan 2026 22:51:48 GMTUSAboundaries0.5.1successhttps://ropensci.r-universe.devhttps://github.com/ropensci/USAboundariesget-started.Rmdget-started.htmlGetting Started2026-01-25 21:24:422026-01-29 22:51:48jacciziebert@gmail.com (Jacci Ziebert)Contains datasets, including higher resolution boundary data, for use in the 'USAboundaries' package. These datasets come from the U.S. Census Bureau, the Newberry Library's 'Historical Atlas of U.S. County Boundaries', and Erik Steiner's 'United States Historical City Populations, 1790-2010'.https://github.com/r-universe/ropensci/actions/runs/36536685737Thu, 23 Oct 2025 01:07:59 GMTUSAboundariesData0.5.1successhttps://ropensci.r-universe.devhttps://github.com/ropensci/USAboundariesData