# Working with United States ZIP Code and ZIP Code Tabulation Area Data

## Documentation for package ‘zippeR’ version 0.2.0

- DESCRIPTION file
- User guides, package vignettes and other documentation
- Package NEWS
- Package README

## Help Pages

zi_aggregate | Aggregate ZCTAs to Three-digit ZCTAs
zi_convert | Convert Five-digit ZIP Codes to Three-digit ZIP Codes
zi_crosswalk | Crosswalk ZIP Codes with UDS, HUD, or a Custom Dictionary
zi_get_demographics | Download Demographic Data for Five-digit ZCTAs
zi_get_geometry | Download and Optionally Geoprocess ZCTAs
zi_label | Label ZIP Codes with Contextual Data
zi_list_zctas | List ZCTA GEOIDs for States
zi_load_crosswalk | Load Crosswalk Files
zi_load_labels | Load Label Data
zi_load_labels_list | Load List of Available Label Data Sets
zi_mo_hud | Missouri HUD ZIP Code to County Crosswalk, 2023
zi_mo_pop | Total Population and Median Household Income, Missouri ZCTAs 2022
zi_mo_usps | Missouri USPS Three-digit ZIP Code Labels, August 2024
zi_mo_zcta3 | Missouri Three-digit ZCTAs, 2022
zi_prep_hud | Convert HUD Crosswalk Data to Finalized Crosswalk
zi_repair | Repair ZIP Code or ZCTA Vector
zi_validate | Validate ZIP Code or ZCTA Vector