Arnold is located in Maryland.
21012 has a population of
Arnold 21012 is
family-centric than the surrounding county with
34% households with
The county percentage for households with children is
The median household income in Arnold,
Maryland 21012 is
The median household income for the surrounding county is $97,717
compared to the national median of $61,963.
The median age of people living in Arnold
The average high temperature in July is
degrees, with an average low temperature in January of
The annual precipitation is