ZIP Code 21921 Map
Census ZIP Code Tabulation Area 21921 in Elkton, MD (Cecil County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 21921 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
45,527
Households
17,316
Median household income
$85,775
Median age
39.4 years
Median home value
$330,400
Median gross rent
$1,421/mo
Owner-occupied homes
69.8%
Bachelor's degree or higher
28.8%
Below poverty level
13.6%
Land area
94.7 sq mi
Population density
481 / sq mi