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Columbia, MD ZIP Codes

3 records

ZIPTypeCountyTimezoneArea Codes
21044STANDARDHoward CountyAmerica/New_York227, 240, 301, 410, 443, 667
21045STANDARDHoward CountyAmerica/New_York410, 443, 667
21046STANDARDHoward CountyAmerica/New_York227, 240, 301, 410, 443, 667