How many states does the boundary line below the New Market line border?
Maryland Line, Maryland Maryland Line is an unincorporated town in Baltimore County, Maryland just south of the Mason–Dixon line below York County, Pennsylvania. It is accessible from exits 36 and 37 off I-83. In the 19th century it was known as "New Market," but the name was changed to avoid confusion with a town in Frederick County with the same name.
Micropolitan statistical area United States micropolitan statistical areas (µSA, where the initial Greek letter mu represents "micro-"), as defined by the Office of Management and Budget (OMB), are labor market areas in the United States centered on an urban cluster (urban area) with a population of at least 10,000 but fewer than 50,000 people. The micropolitan area designation was created in 2003. Like the better-known Metropolitan Statistical Areas, a micropolitan area is a geographic entity used for statistical purposes based on counties and county equivalents. The OMB has identified 536 micropolitan areas in the United States.