Arnold, Maryland

Arnold, Maryland
Baltimore-Annapolis Boulevard in Arnold
Location of Arnold, Maryland
Coordinates: 39°01′55″N 76°30′10″W / 39.03194°N 76.50278°W / 39.03194; -76.50278
Country United States
State Maryland
County Anne Arundel
Area
  Total
13.56 sq mi (35.11 km2)
  Land10.82 sq mi (28.02 km2)
  Water2.74 sq mi (7.09 km2)
Elevation
128 ft (39 m)
Population
 (2020)
  Total
24,064
  Density2,224.24/sq mi (858.80/km2)
Time zoneUTC−5 (Eastern (EST))
  Summer (DST)UTC−4 (EDT)
ZIP code
21012
Area code410
FIPS code24-02275
GNIS feature ID582920

Arnold, a census-designated place (CDP) in Anne Arundel County, Maryland, United States, located just outside of the state's capital, Annapolis. It is located 18.78 miles south of Baltimore, and 29.97 miles east of Washington, D.C. The population was 23,106 at the 2010 census. Neighborhoods straddle College Parkway and Maryland Route 2 (Ritchie Highway). Arnold is located on the scenic Broadneck Peninsula. The ZIP code is 21012. It is bordered by Severna Park to the northwest, Cape Saint Claire to the southeast, Annapolis to the southwest, and Lake Shore (a CDP within Pasadena) to the northeast.