Mechanicsville, MD zip code
Mechanicsville, Maryland uses one zip code: 20659. Most of it is in St. Mary's County. Together these zip codes are home to about 24K people.
Zip codes
1
Population
24K
All zips combined
Largest zip
20659
24,324 residents
Zip codes in Mechanicsville
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 20659 | 24,324 | $121,654 |