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USPS city
Gunpowder, MD ZIP codes
1 ZIP code that list Gunpowder as a USPS primary or acceptable city. Not a Census place.
Sum of ZCTA populations for ZIP codes intersecting Gunpowder. Not a Census place total. Methodology
Combined population of ZIP/ZCTAs that list this USPS city as a primary or acceptable name. This is a labeled ZIP-sum, never a Census place ACS population. Methodology
ZIP codes associated with Gunpowder
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 21010 | Gunpowder | Harford County | 216 | $94,097 |