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Waltham city, MA

ZIP 02451 — People & Community

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

Upper Middle ClassLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 02451

02451 has a population of 18,153 with a median age of 39.4 yrs (50.5% male).

Race & Ethnicity
White
58.2%-6% vs US avg
x
Black
7.7%-38% vs US avg
x
Asian
16.3%+177% vs US avg
x
Hispanic
17.6%-6% vs US avg
x
Age Groups
0–17
14.9%-32% vs US avg
x
18–64
67.6%+10% vs US avg
x
65+
17.5%+7% vs US avg
x
Education
Less than HS
6.5%-41% vs US avg
x
High school
20.6%-21% vs US avg
x
Some college
18.2%-37% vs US avg
x
Bachelor's+
54.7%+62% vs US avg
x
Marital Status
Married
44.5%-8% vs US avg
x
Never married
41.9%+24% vs US avg
x
Divorced
7.0%-32% vs US avg
x
Widowed / Separated
6.6%
x
Diversity Index
60/100

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

Social & household profile

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

Poverty Rate
7.5%-35% vs US avg
x
Foreign Born
37.6%+171% vs US avg
x
Veterans
1.7%-71% vs US avg
x
Disability
12.8%-4% vs US avg
x
Single Parent
5.6%-30% vs US avg
x
Recent Births
21.4%+269% vs US avg
x
Top ancestry
IrishItalianEnglish

Health & Community Indicators in 02451

Poverty Rate
7.5%-35% vs US avg
x
Veterans
1.7%-71% vs US avg
x
Foreign Born
37.6%+171% vs US avg
x
Single Parent
5.6%-30% vs US avg
x
Disability
12.8%-4% vs US avg
x
Uninsured
1.5%-82% vs US avg
x
SNAP Benefits
7.9%-33% vs US avg
x
Private School
0.3%-97% vs US avg
x
Recent Births
21.4%+269% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population18,153
Median age39.4
Poverty rate7.5%
Demographics statistics
Demographics
White58.2%
Hispanic17.6%
Black7.7%
Asian16.3%
Foreign-born37.6%