Howard County ZIP Codes is 20588 to 21797. This county is located in Maryland State, United States of America (USA), North America.
| Name | Howard County |
|---|---|
| ZIP Code | 20588 – 21797 |
| Area Code | 202, 240, 301, 410, 443 |
| Seat | Ellicott City |
| State | Maryland (MD) |
| Country | United States (US) |
| Region | North America |
For more details on the list of 24 Postal codes or ZIP codes in Howard County, find the code along with the City and code.
| City | ZIP Code | County | State |
|---|---|---|---|
| Clarksville | 21029 | Howard | Maryland |
| Columbia | 21044 | Howard | Maryland |
| Columbia | 21045 | Howard | Maryland |
| Columbia | 21046 | Howard | Maryland |
| Cooksville | 21723 | Howard | Maryland |
| Dayton | 21036 | Howard | Maryland |
| Dhs | 20588 | Howard | Maryland |
| Elkridge | 21075 | Howard | Maryland |
| Ellicott City | 21041 | Howard | Maryland |
| Ellicott City | 21042 | Howard | Maryland |
| Ellicott City | 21043 | Howard | Maryland |
| Fulton | 20759 | Howard | Maryland |
| Glenelg | 21737 | Howard | Maryland |
| Glenwood | 21738 | Howard | Maryland |
| Highland | 20777 | Howard | Maryland |
| Jessup | 20794 | Howard | Maryland |
| Laurel | 20723 | Howard | Maryland |
| Lisbon | 21765 | Howard | Maryland |
| Marriottsville | 21104 | Howard | Maryland |
| Savage | 20763 | Howard | Maryland |
| Simpsonville | 21150 | Howard | Maryland |
| West Friendship | 21794 | Howard | Maryland |
| Woodbine | 21797 | Howard | Maryland |
| Woodstock | 21163 | Howard | Maryland |