ZIP Code 21810
About Allen
Allen is an unincorporated community and census-designated place in Wicomico County, Maryland, United States. Its population was 210 as of the 2010 census. It is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area.
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Area Profile
US Census (ACS 5-year · Gazetteer)
125
population
$133,201
median household income
263
people / sq mi
$233,500
median home value
69.3
median age
59
housing units
59
households
0.5
land area (sq mi)