Howard County ZIP Codes
Maryland, United States · 22 codes
Howard County in Maryland has 22 ZIP codes, from 20588 to 21794, serving 22 places.
ZIP codes in Howard
| ZIP Code | Places |
|---|---|
| 20588 | Dhs |
| 20701 | Annapolis Junction |
| 20723 | Laurel |
| 20759 | Fulton |
| 20763 | Savage |
| 20777 | Highland |
| 20794 | Jessup |
| 21029 | Clarksville |
| 21036 | Dayton |
| 21041 | Ellicott City |
| 21042 | Ellicott City |
| 21043 | Ellicott City |
| 21044 | Columbia |
| 21045 | Columbia |
| 21046 | Columbia |
| 21075 | Elkridge |
| 21150 | Simpsonville |
| 21723 | Cooksville |
| 21737 | Glenelg |
| 21738 | Glenwood |
| 21765 | Lisbon |
| 21794 | West Friendship |
Frequently asked questions
What is the ZIP code of Howard?
Howard has 22 ZIP codes, from 20588 to 21794. The table lists the places each one serves.
How many places are listed in Howard County?
22 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.