US Census Data

ZIP 02121 vs ZIP 02129

A side-by-side comparison of ZIP Code 02121 and ZIP Code 02129: population, income, housing, and more.

ZIP 02121 and ZIP 02129 are ZIP Code areas in Massachusetts. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 02121 has the higher population (28,298 vs 19,994 in ZIP 02129). ZIP 02129 has the higher median household income ($157,192 vs $38,565 in ZIP 02121). ZIP 02129 has the higher median home value ($926,000 vs $548,100 in ZIP 02121).

Population, income & housing

ZIP 02121ZIP 02129
Population28,29819,994
Median age34.2 yrs36.0 yrs
Median household income$38,565$157,192
Median home value$548,100$926,000
Median gross rent$1,316$2,258
Housing units11,3849,987
Homeownership rate23.1%49.6%
Bachelor's degree or higher20.5%71.4%
Unemployment rate9.6%2.5%

Trends (ACS 5-year, 2019–2023)

ZIP 02121ZIP 02129
Population30,159 → 28,298 (-6.2%)19,890 → 19,994 (+0.5%)
Median household income$32,500 → $38,565 (+18.7%)$128,403 → $157,192 (+22.4%)
Median home value$500,100 → $548,100 (+9.6%)$734,200 → $926,000 (+26.1%)
Median gross rent$982 → $1,316 (+34.0%)$1,339 → $2,258 (+68.6%)

ZIP 02121

Population
30,15928,298
Median household income
$32,500$38,565
Median home value
$500,100$548,100
Median gross rent
$982$1,316

ZIP 02129

Population
19,89019,994
Median household income
$128,403$157,192
Median home value
$734,200$926,000
Median gross rent
$1,339$2,258

Age & race/ethnicity

Age distribution (share)

ZIP 02121ZIP 02129
Under 57.3%7.8%
5 to 1719.8%12.9%
18 to 2410.6%2.4%
25 to 3413.1%25.1%
35 to 4413.2%18.4%
45 to 5410.6%11.0%
55 to 6413.0%9.0%
65 to 748.4%8.9%
75 and over4.0%4.3%

Race & ethnicity (share)

ZIP 02121ZIP 02129
White (non-Hispanic)7.1%71.3%
Black or African American45.0%4.6%
American Indian & Alaska Native0.1%0.0%
Asian1.4%8.6%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race1.8%0.2%
Two or more races6.7%5.7%
Hispanic or Latino38.0%9.6%

Educational attainment (age 25+)

Share of adults 25+

ZIP 02121ZIP 02129
No high school diploma24.5%5.7%
High school graduate30.9%12.9%
Some college or associate's24.0%9.9%
Bachelor's degree13.4%35.5%
Graduate or professional degree7.2%35.9%

Commute to work

How workers get to work (share)

ZIP 02121ZIP 02129
Drove alone39.9%29.3%
Carpooled11.0%6.0%
Public transit34.6%18.5%
Walked3.6%13.6%
Bicycle1.4%6.8%
Worked from home5.8%24.1%
Other means3.8%1.6%

Housing

Units in structure (share)

ZIP 02121ZIP 02129
1-unit, detached7.9%5.1%
1-unit, attached6.1%13.8%
2 to 4 units52.2%33.2%
5 to 19 units27.8%17.2%
20 or more units6.0%30.6%
Mobile home & other0.0%0.1%

Poverty & households

ZIP 02121ZIP 02129
Poverty rate26.5%6.3%
Average household size2.712.12
Mean commute (minutes)3529
Median year structure built19501938

Full profiles

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