Arnold is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 23,422 at the 2000 census. Neighborhoods straddle College Parkway and Ritchie Highway. Arnold is located on the scenic Broadneck peninsula. The ZIP code is 21012.
|Period||Total Sold||Average Price||Median Price|
|21012||4 out of 5|
|Maryland||2 out of 5|
|21012||No rating submitted|