ZIP code areas

Local zip_code_areas (Bexar CSV) plus nationwide us_postcodes from data/us/postcodes-simplified-geometry.ndjson. Import loads all US ZCTAs, then syncs matching local ZIP rows.

— ZIP map
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Sources. Bexar centroids: data/Bexar_County_ZIP_Code_Areas.csv (bundled) → zip_code_areas. Nationwide ZCTAs: data/us/postcodes-simplified-geometry.ndjson (~411MB, not in git) → us_postcodes, then matching rows update zip_code_areas. CLI: bun run import-zip-geometry · sync only: bun run sync-zips-from-postcodes (optional --prefix=78).
ZIP PO name Geom Calls Source Latitude Longitude
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