ZIP Code 21150
| Post Office City | Simpsonville, MD |
|---|---|
| County | Howard County |
| Area Code | 410 |
| Longitude | -76.88 |
| Latitude | 39.20 |
| Radius | ~3 mile radius |
| Timezone | Eastern |
| Zip Type | PO Box |
| Post Office City | Simpsonville, MD |
|---|---|
| County | Howard County |
| Area Code | 410 |
| Longitude | -76.88 |
| Latitude | 39.20 |
| Radius | ~3 mile radius |
| Timezone | Eastern |
| Zip Type | PO Box |