Data Files
04/22/2024
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
04/22/2024
Area District Finance File (AREADIST.TXT)
Data Files
04/22/2024
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
04/22/2024
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Data Files
04/22/2024
Pending Route Adjustment File

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

Data Files
04/18/2024
Z4 Info File

A downloadable ZIP file containing information related to the Z4 Info File

Data Files
04/18/2024
Early Warning System (EWS002C0.ZIP)

This file is the EWS production file and is updated weekly. This file contains the Early Warning System data file for the CASS™ and MASS™ certification process.

 

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.