ZIP Code 21704 Map
Census ZIP Code Tabulation Area 21704 in Frederick, MD (Frederick County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 21704 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
20,006
Households
6,136
Median household income
$161,063
Median age
38.6 years
Median home value
$612,000
Median gross rent
$2,536/mo
Owner-occupied homes
82%
Bachelor's degree or higher
57.4%
Below poverty level
2.9%
Land area
26.6 sq mi
Population density
751 / sq mi