A few cover multiple states. See: https://peter-horton.com/2022/12/30/zip-codes-zctas-and-zctas-that-cross-state-boundaries/ https://peter-horton.com/2022/12/3

A few cover multiple states. See: https://peter-horton.com/2022/12/30/zip-codes-zctas-and-zctas-that-cross-state-boundaries/ https://peter-horton.com/2022/12/30/zip-codes-zctas-and-zcta...