| Primary City | Riverside | |
| Population | 6,425 | |
| State | Maryland | |
| County | Harford County | |
| Current Time | ||
| Zip Codes | 21017 | |
| Area Codes | 410 |
Neighbouring Zip Codes
ZIP Code: 21001
Aberdeen, Maryland
ZIP Code: 21015
Bel Air, Maryland
ZIP Code: 21014
Bel Air, Maryland
ZIP Code: 21040
Edgewood, Maryland
ZIP Code: 21221
Essex, Maryland
ZIP Code: 21047
Fallston, Maryland
ZIP Code: 21078
Havre De Grace, Maryland
ZIP Code: 21085
Joppa, Maryland
ZIP Code: 21085
Joppa, Maryland
ZIP Code: 21220
Middle River, Maryland
ZIP Code: 21128
Perry Hall, Maryland
ZIP Code: 21162
White Marsh, Maryland
Neighbouring Cities
Aberdeen, Edgewood, Joppatowne, Bel Air, Bel Air North, Fallston, Havre de Grace, White Marsh, Bowleys Quarters, Perry Hall, Middle River, Rossville, Carney, Overlea, Essex