Man pages for zipcodeR
Data & Functions for Working with US ZIP Codes

download_comprehensive_dataDownload the comprehensive ZIP code database
download_zip_dataLegacy in-place data downloader
download_zip_data_bundleDownload a versioned zipcodeR data bundle
geocode_zipReturns that lat / lon pair of the centroid of a given ZIP...
geocode_zip_ngGeocode ZIP codes using an explicit data bundle
get_cdGet all congressional districts for a given ZIP code
get_cd_ngGet congressional districts using an explicit data bundle
get_tractsGet all Census tracts within a given ZIP code
get_tracts_ngGet Census tracts using an explicit data bundle
is_zctaReturns true if the given ZIP code is also a ZIP code...
is_zcta_ngTest ZCTA membership using an explicit data bundle
normalize_zipNormalize ZIP codes
normalize_zip_ngNormalize ZIP codes with corrected boundary behavior
read_zip_data_bundleRead a versioned zipcodeR data bundle
reverse_zipcodeGiven a ZIP code, returns columns of metadata about that ZIP...
reverse_zipcode_ngReverse-geocode ZIP codes using an explicit data bundle
search_cdGet all ZIP codes that fall within a given congressional...
search_cd_ngSearch a congressional district using an explicit data bundle
search_citySearch ZIP codes for a given city within a state
search_city_ngSearch a city using an explicit data bundle
search_countySearch ZIP codes for a county
search_county_ngSearch a county using an explicit data bundle
search_fipsReturns all ZIP codes found within a given FIPS code
search_fips_ngSearch FIPS codes using an explicit data bundle
search_radiusSearch for ZIP codes that are within a given radius from a...
search_radius_ngSearch within a radius using an explicit data bundle
search_stateSearch for ZIP codes located within a given state
search_state_ngSearch a state using an explicit data bundle
search_tzSearch all ZIP codes located within a given timezone
search_tz_ngSearch a timezone using an explicit data bundle
zcta_crosswalkZCTA to Census Tract (2010) Crosswalk
zip_code_dbZIP Code Database
zipcodeR-packagezipcodeR: reproducible U.S. ZIP-code analysis
zip_data_provenanceInspect the provenance supplied with a zipcodeR data bundle
zip_data_versionReport zipcodeR data-version metadata
zip_distanceCalculate the distance between two ZIP codes in miles
zip_distance_ngCalculate ZIP-to-ZIP distance using an explicit data bundle
zip_to_cdZIP Code to Congressional District Relationship File
zipcodeR documentation built on Sept. 7, 2026, 5:06 p.m.