ZIP Code 20635
| Post Office City | Helen, MD |
|---|---|
| County | St Mary's County |
| Area Code | 240 |
| Longitude | -76.7 |
| Latitude | 38.4 |
| Radius | ~12 mile radius |
| Timezone | Eastern |
| Zip Type | PO Box |
| Post Office City | Helen, MD |
|---|---|
| County | St Mary's County |
| Area Code | 240 |
| Longitude | -76.7 |
| Latitude | 38.4 |
| Radius | ~12 mile radius |
| Timezone | Eastern |
| Zip Type | PO Box |