Pierce County, WashingtonZipcode polygons throughout Pierce County. Data was acquired from Zip+4 Address Information System, and then adjusted to ensure parcels fell in their correct zipcode. This data should be cross-referenced with the USPS for the most current street and site address changes. Please see metadata for additional information ( https://matterhorn.piercecountywa.gov/GISmetadata/pdbis_zip_codes.html ). Any data download constitutes acceptance of the Terms of Use ( https://matterhorn.piercecountywa.gov/Disclaimer/PierceCountyGISDataTermsofUse.pdf ). Terms of Use/Custom License: Please see provided hyperlinks for metadata and Terms of Use.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/23d2f3a240914f75b18f7f1bbdc98c79_0engPierce County Open GeoSpatial Data PortalPublicZip Codes [Washington (State)--Pierce County]Web servicesWashington (State)--Pierce CountyWashington (State)Last Modified: 2025-09-04