Baltimore County, Maryland
44 ZIP codes · 598.36 sq mi of land · FIPS 24005
| Population | 850,796 |
|---|---|
| State | Maryland |
| FIPS code | 24005 |
| Time zone | Eastern |
| Land area | 598.36 sq mi |
| Center (lat, long) | 39.4432, -76.6166 |
Area codes in this area
These are the area codes that most often serve Baltimore County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Baltimore · 573,243Dundalk · 65,969Towson · 58,679Catonsville · 43,368Essex · 40,580Owings Mills · 37,245Randallstown · 35,957Pikesville · 33,524Middle River · 31,712Parkville · 30,549Perry Hall · 29,105Reisterstown · 25,582Cockeysville · 23,962Rosedale · 20,002BaldwinButlerHunt ValleyForkFort HowardFreelandGlen ArmGlyndonHydesKingsvilleLutherville TimoniumMaryland LineMonktonParktonPhoenixSparks Glencoe
ZIP codes in Baltimore County
21013 Baldwin21023 Butler21030 Cockeysville21031 Hunt Valley21051 Fork21052 Fort Howard21053 Freeland21057 Glen Arm21071 Glyndon21082 Hydes21087 Kingsville21093 Lutherville Timonium21105 Maryland Line21111 Monkton21117 Owings Mills21120 Parkton21128 Perry Hall21131 Phoenix21133 Randallstown21136 Reisterstown21152 Sparks Glencoe21153 Stevenson21155 Upperco21156 Upper Falls21162 White Marsh21163 Woodstock21204 Towson21207 Gwynn Oak21208 Pikesville21209 Baltimore21219 Sparrows Point21220 Middle River21221 Essex21222 Dundalk21227 Halethorpe21228 Catonsville21234 Parkville21236 Nottingham21237 Rosedale21244 Windsor Mill21250 Baltimore21252 Towson21285 Towson21286 Towson
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.