Arnold Located on the Broadneck Peninsula in Anne Arundel County, five miles north of Annapolis, Arnold boasts several beaches and trails and offers a wealth of opportunities for recreational activities. Arnold’s water-oriented communities can be found on the Severn River and the Magothy River, as well as on their tributaries. Spend the day at Arnold Park or Broadneck Park, or head out to Sandy Point State Park on the Chesapeake Bay! A scenic community, Arnold is also located within close proximity to the B&A Trail and offers easy access to a variety of shopping and dining experiences. In addition, Arnold is home to Anne Arundel Community College.