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Lexington CDP, MA

ZIP 02421 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Wealthy AreaLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 02421

02421 has a population of 17,798 with a median age of 47.7 yrs (47.3% male).

Race & Ethnicity
White
56.9%-8% vs US avg
x
Black
1.5%-88% vs US avg
x
Asian
34.5%+484% vs US avg
x
Hispanic
2.8%-85% vs US avg
x
Other / Two+
4.3%
x
Age Groups
0–17
25.6%+17% vs US avg
x
18–64
51.7%-16% vs US avg
x
65+
22.7%+39% vs US avg
x
Education
Less than HS
3.0%-73% vs US avg
x
High school
5.1%-80% vs US avg
x
Some college
7.2%-75% vs US avg
x
Bachelor's+
84.7%+151% vs US avg
x
Marital Status
Married
68.9%+43% vs US avg
x
Never married
20.1%-40% vs US avg
x
Divorced
5.0%-52% vs US avg
x
Widowed / Separated
6.0%
x
Diversity Index
55/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
6.0%-48% vs US avg
x
Foreign Born
35.0%+152% vs US avg
x
Veterans
2.8%-53% vs US avg
x
Disability
8.8%-34% vs US avg
x
Single Parent
4.2%-49% vs US avg
x
Recent Births
40.0%+589% vs US avg
x
Top ancestry
IrishEnglishGerman

Health & Community Indicators in 02421

Poverty Rate
6.0%-48% vs US avg
x
Veterans
2.8%-53% vs US avg
x
Foreign Born
35.0%+152% vs US avg
x
Single Parent
4.2%-49% vs US avg
x
Disability
8.8%-34% vs US avg
x
Uninsured
0.8%-90% vs US avg
x
SNAP Benefits
4.2%-64% vs US avg
x
Private School
0.4%-96% vs US avg
x
Recent Births
40.0%+589% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population17,798
Median age47.7
Poverty rate6.0%
Demographics statistics
Demographics
White56.9%
Hispanic2.8%
Black1.5%
Asian34.5%
Foreign-born35.0%