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2000 Zip Code Maps

Note: These Zip Code boundaries reflect U.S. Postal Service delivery area. They are not the same as the U.S. Census Bureau Zip Code Tabulation Areas (ZCTAs). Later this year, we will obtain the geographic boundaries for the ZCTAs.

Allegany County Anne Arundel County Baltimore County Calvert County Caroline County
Carroll County Cecil County Charles County Dorchester County Frederick County
Garrett County Harford County Howard County Kent County Montgomery County
Prince George's County Queen Anne's County St. Mary's County Somerset County Talbot County
Washington County Wicomico County Worcester County Baltimore City