Gwynn Oak, MD zip code
Gwynn Oak, Maryland uses one zip code: 21207. Most of it is in Baltimore County. Together these zip codes are home to about 47K people.
Zip codes
1
Population
47K
All zips combined
Largest zip
21207
47,099 residents
Zip codes in Gwynn Oak
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 21207 | 47,099 | $67,060 |