| County : | Frederick County |
| State : | Maryland (MD) |
| Land Area : | 660.22 sq mi |
| Water Area : | 7.16 sq mi |
| Latitude : | 39.4704273 |
| Longitude : | -77.3976265 |
| Population (2010): | 233,385 |
| Population Estimate (2012) : | 234,268 |
| Population Density : | 353.50/sq mi |
| Housing Units (2012) : | 90,136 |
| Median Household Income (2012) : | $83,706 (Maryland : $72,999, USA : $53,046) |
| Median Family Income (2012) : | $97,569 (Maryland : $88,092, USA : $64,585) |
| Median House Price (2012) : | $316,800 (Maryland : $304,900, USA : $181,400) |
Frederick County Cities / Towns
| Adamstown (2,372) | Ballenger Creek (18,274) | Bartonsville (1,451) |
| Braddock Heights (2,608) | Brunswick City (5,870) | Buckeystown (1,019) |
| Burkittsville Town (151) | Emmitsburg Town (2,814) | Frederick City (65,239) |
| Jefferson (2,111) | Libertytown (950) | Linganore (8,543) |
| Middletown Town (4,136) | Monrovia (416) | Mount Airy Town (9,288) |
| Myersville Town (1,626) | New Market Town (656) | Point of Rocks (1,466) |
| Rosemont Village (294) | Sabillasville (354) | Spring Ridge (5,795) |
| Thurmont Town (6,170) | Urbana (9,175) | Walkersville Town (5,800) |
| Woodsboro Town (1,141) |
Frederick County Zip Codes
| 20842 (1,824) | 20871 (13,130) | 21701 (35,293) |
| 21702 (38,847) | 21703 (32,854) | 21704 (13,321) |
| 21705 (8) | 21710 (4,515) | 21714 (99) |
| 21716 (4,885) | 21717 (54) | 21718 (151) |
| 21719 (1,548) | 21727 (5,850) | 21754 (6,323) |
| 21755 (5,591) | 21757 (3,036) | 21758 (4,921) |
| 21762 (249) | 21769 (11,236) | 21770 (5,164) |
| 21771 (29,563) | 21773 (5,460) | 21774 (11,662) |
| 21776 (5,735) | 21777 (1,470) | 21778 (1,094) |
| 21780 (1,625) | 21783 (9,130) | 21787 (10,693) |
| 21788 (11,622) | 21790 (100) | 21791 (5,281) |
| 21793 (9,775) | 21798 (2,345) |