Gunpowder, MD zip code
Gunpowder, Maryland uses one zip code: 21010. Most of it is in Harford County. Together these zip codes are home to about 239 people.
Zip codes
1
Population
239
All zips combined
Largest zip
21010
239 residents
Zip codes in Gunpowder
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 21010 | 239 | $99,410 |