Q4 2026 ZIP-to-locality crosswalk release
Effective October 1 – December 31, 2026. It is the immutable dataset vintage behind any site page that cites this release.
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Release
Q4 2026
ZIP-to-locality crosswalk
Effective
Effective October 1 – December 31, 2026
Source files
1
member files recorded
Revision
v1
only published version we ingested
The quarterly crosswalk mapping every 5-digit ZIP code to the Medicare payment locality whose GPCIs price claims from that ZIP.
The publisher released this dataset as zip-code-carrier-locality-file-updated-08-13-2026.zip. We ingested it on Aug 14, 2026.