Linthicum Heights zipcode
| City | Linthicum Heights |
| ZIP Code | 21090 |
| Type | Standard |
| State Code | MD |
| State | Maryland |
ZIP code of Linthicum Heights is 21090. This place is located in Maryland state in US. To send any postal service to Linthicum Heights, you must use 21090 zipcode.
The ZIP code 21090 is also used with 2 more city names of Maryland.
- Linthicum, MD
- Linthicum Hts, MD