Maryland Gazetteer > Maryland ZIP Codes > County ZIP Codes > Howard ZIP Codes

Also see: ZIP Codes in Howard with Associated Cities & Towns

ZIP Codes in Howard County with Associated Cities & Towns

Annapolis Jct   20701
Annapolis Junction   20701
Clarksville   21029
Columbia   21044
Columbia   21045
Columbia   21046
Cooksville   21723
Daniels   21043
Dayton   21036
Elkridge   21075
 Ellicott City   21041
Ellicott City   21042
Ellicott City   21043
Fulton   20759
Glenelg   21737
Glenwood   21738
Granite   21163
Highland   20777
Ilchester   21043
Jessup   20794
 Laurel   20723
Lisbon   21765
Oella   21043
Savage   20763
Scaggsville   20723
Simpsonville   21150
W Friendship   21794
West Friendship   21794
Woodbine   21797
Woodstock   21163

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties / Independent Cities.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.