Package index • zippeR

Data Preparation

Ensure vectors of ZIP Codes or ZCTAs are Valid

zi_validate(): Validate ZIP Code or ZCTA Vector

zi_repair(): Repair ZIP Code or ZCTA Vector

ZCTA Geometric Data

Download Five- and Three-Digit Boundary Files

zi_get_geometry(): Download and Optionally Geoprocess ZCTAs

zi_list_zctas(): List ZCTA GEOIDs for States

ZCTA Demographic Data

Download Five-Digit Demographic Data and Calculate Three-Digit Estimates

zi_get_demographics(): Download Demographic Data for Five-digit ZCTAs

zi_aggregate(): Aggregate ZCTAs to Three-digit ZCTAs

Crosswalk ZIP Codes and ZCTAs

Identify the Correct ZCTA for a Given ZIP Code

zi_load_crosswalk(): Load Crosswalk Files

zi_prep_hud(): Convert HUD Crosswalk Data to Finalized Crosswalk

zi_crosswalk(): Crosswalk ZIP Codes with UDS, HUD, or a Custom Dictionary

Label ZIP Codes

Append Contextual Data to ZIP Codes

zi_label(): Label ZIP Codes with Contextual Data

zi_load_labels(): Load Label Data

zi_load_labels_list(): Load List of Available Label Data Sets

Convert to Three-digit ZIP Codes

Adapt Five-digit ZIP Codes to Three-digit ZIP Codes

zi_convert(): Convert Five-digit ZIP Codes to Three-digit ZIP Codes

Sample Data

Data Used for Examples

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