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Zip Codes

Published by US Postal Service | District of Columbia | Catalog Last Checked: May 05, 2026 at 10:36 PM | Dataset Last Updated: October 14, 2022 at 12:00 AM
Zip Codes (5-digit). The dataset polygons represent location and attributes of zip codes, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies. Zip Codes were identified from public records (US Postal Service) and created selecting arcs from the street centerlines and vector property map.

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