ZIP Code 02421 Map
Census ZIP Code Tabulation Area 02421 in Lexington, MA (Middlesex County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 02421 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
18,080
Households
6,824
Median household income
$227,813
Median age
48.2 years
Median home value
$1,205,700
Median gross rent
$2,948/mo
Owner-occupied homes
75.9%
Bachelor's degree or higher
83.2%
Below poverty level
6.4%
Land area
9.6 sq mi
Population density
1,889 / sq mi