Working with United States ZIP Code and ZIP Code Tabulation Area Data R package zippeR version 0.2.0 Provides a set of functions for working with American postal codes, which are known as ZIP Codes. These include accessing ZIP Code to ZIP Code Tabulation Area (ZCTA) crosswalks, retrieving demographic data for ZCTAs, and tabulating demographic data for three-digit ZCTAs. Software Depends: R (>= 4.1) Imports: cli (>= 3.0.0), dplyr (>= 1.0.0), httr2 (>= 1.0.0), jsonlite (>= 1.7.0), sf (>= 1.0-0), tibble (>= 3.0.0), tidycensus (>= 1.0), tigris (>= 1.0) Suggests: knitr, lintr, rmarkdown, spelling, testthat (>= 3.0.0), withr Christopher Prener <Christopher.Prener@pfizer.com> Comprehensive R Archive Network (CRAN) Christopher Prener [aut, cre] (ORCID: <https://orcid.org/0000-0002-4310-9888>), Timothy Wiemken [aut] (ORCID: <https://orcid.org/0000-0002-8251-3007>), Angela Cook [aut] Apache License (>= 2) 2026-06-02 application/tgz https://CRAN.R-project.org/package=zippeR doi:10.32614/CRAN.package.zippeR en-US