Arnold Maryland About
Arnold Maryland has a zip code of 21012. The current date and time in Arnold is April 30, 2024, 4:13 am and it has a population of 21,001 people. Arnold Maryland lies at an elevation of 41 feet.
Arnold Maryland has a zip code of 21012. The current date and time in Arnold is April 30, 2024, 4:13 am and it has a population of 21,001 people. Arnold Maryland lies at an elevation of 41 feet.