| download_comprehensive_data | Download the comprehensive ZIP code database |
| download_zip_data | Legacy in-place data downloader |
| download_zip_data_bundle | Download a versioned zipcodeR data bundle |
| geocode_zip | Returns that lat / lon pair of the centroid of a given ZIP code |
| geocode_zip_ng | Geocode ZIP codes using an explicit data bundle |
| get_cd | Get all congressional districts for a given ZIP code |
| get_cd_ng | Get congressional districts using an explicit data bundle |
| get_tracts | Get all Census tracts within a given ZIP code |
| get_tracts_ng | Get Census tracts using an explicit data bundle |
| is_zcta | Returns true if the given ZIP code is also a ZIP code tabulation area (ZCTA) |
| is_zcta_ng | Test ZCTA membership using an explicit data bundle |
| normalize_zip | Normalize ZIP codes |
| normalize_zip_ng | Normalize ZIP codes with corrected boundary behavior |
| read_zip_data_bundle | Read a versioned zipcodeR data bundle |
| reverse_zipcode | Given a ZIP code, returns columns of metadata about that ZIP code |
| reverse_zipcode_ng | Reverse-geocode ZIP codes using an explicit data bundle |
| search_cd | Get all ZIP codes that fall within a given congressional district |
| search_cd_ng | Search a congressional district using an explicit data bundle |
| search_city | Search ZIP codes for a given city within a state |
| search_city_ng | Search a city using an explicit data bundle |
| search_county | Search ZIP codes for a county |
| search_county_ng | Search a county using an explicit data bundle |
| search_fips | Returns all ZIP codes found within a given FIPS code |
| search_fips_ng | Search FIPS codes using an explicit data bundle |
| search_radius | Search for ZIP codes that are within a given radius from a point |
| search_radius_ng | Search within a radius using an explicit data bundle |
| search_state | Search for ZIP codes located within a given state |
| search_state_ng | Search a state using an explicit data bundle |
| search_tz | Search all ZIP codes located within a given timezone |
| search_tz_ng | Search a timezone using an explicit data bundle |
| zcta_crosswalk | ZCTA to Census Tract (2010) Crosswalk |
| zip_code_db | ZIP Code Database |
| zip_data_provenance | Inspect the provenance supplied with a zipcodeR data bundle |
| zip_data_version | Report zipcodeR data-version metadata |
| zip_distance | Calculate the distance between two ZIP codes in miles |
| zip_distance_ng | Calculate ZIP-to-ZIP distance using an explicit data bundle |
| zip_to_cd | ZIP Code to Congressional District Relationship File |