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Address Information System (AIS) Area/District 3-Digit and 5-Digit ZIP Code™ Assignments
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Data Files
09/14/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)

Data Files
09/14/2026
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)

Data Files
09/14/2026
Area District Finance File (AREADIST.TXT)

Data Files
09/14/2026
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)

Data Files
01/11/2021
Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)

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