Data Files
04/15/2024
AISU ZIP Code File (AISUZIPS.TXT)
Data Files
04/15/2024
AISU Contact Information (AISUADDR.TXT)
Data Files
04/15/2024
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
04/15/2024
Area District Finance File (AREADIST.TXT)
Data Files
04/15/2024
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
04/15/2024
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Data Files
04/15/2024
Pending Route Adjustment File

This Excel sheet details route adjustments for April 2024 thru June 2024.

Data Files
04/08/2024
Cumulative Listing of ZIP Codes Covered by the LACS Database

This document provides a cumulative listing of ZIP Codes covered by the LACS database for LACSLink®.

Data Files
04/04/2024
Mail Direction (MDFv4) Errata File
Data Files
04/04/2024
Mail Direction (MDFv1) Errata File

Please note that this does not include changes for Gary or South Suburban ZIP Codes.