US Census Data

ZIP 01921 vs ZIP 01930

A side-by-side comparison of ZIP Code 01921 and ZIP Code 01930: population, income, housing, and more.

ZIP 01921 and ZIP 01930 are ZIP Code areas in Massachusetts. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 01930 has the higher population (29,862 vs 8,229 in ZIP 01921). ZIP 01921 has the higher median household income ($190,526 vs $87,898 in ZIP 01930). ZIP 01921 has the higher median home value ($874,900 vs $587,800 in ZIP 01930).

Population, income & housing

ZIP 01921ZIP 01930
Population8,22929,862
Median age49.5 yrs51.0 yrs
Median household income$190,526$87,898
Median home value$874,900$587,800
Median gross rent$736$1,395
Housing units2,96114,630
Homeownership rate94.5%63.3%
Bachelor's degree or higher69.2%38.8%
Unemployment rate3.1%6.4%

Trends (ACS 5-year, 2019–2023)

ZIP 01921ZIP 01930
Population8,282 → 8,229 (-0.6%)30,162 → 29,862 (-1.0%)
Median household income$184,007 → $190,526 (+3.5%)$72,574 → $87,898 (+21.1%)
Median home value$678,700 → $874,900 (+28.9%)$425,400 → $587,800 (+38.2%)
Median gross rent$870 → $736 (-15.4%)$1,185 → $1,395 (+17.7%)

ZIP 01921

Population
8,2828,229
Median household income
$184,007$190,526
Median home value
$678,700$874,900
Median gross rent
$870$736

ZIP 01930

Population
30,16229,862
Median household income
$72,574$87,898
Median home value
$425,400$587,800
Median gross rent
$1,185$1,395

Age & race/ethnicity

Age distribution (share)

ZIP 01921ZIP 01930
Under 53.8%5.5%
5 to 1720.2%10.0%
18 to 245.2%7.6%
25 to 345.8%10.1%
35 to 4410.6%11.2%
45 to 5416.2%10.7%
55 to 6417.6%19.5%
65 to 7414.1%16.0%
75 and over6.5%9.4%

Race & ethnicity (share)

ZIP 01921ZIP 01930
White (non-Hispanic)91.0%89.1%
Black or African American0.4%1.1%
American Indian & Alaska Native0.0%0.1%
Asian1.0%1.6%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.7%0.3%
Two or more races4.3%3.1%
Hispanic or Latino2.6%4.8%

Educational attainment (age 25+)

Share of adults 25+

ZIP 01921ZIP 01930
No high school diploma2.2%6.1%
High school graduate11.8%28.2%
Some college or associate's16.9%26.9%
Bachelor's degree42.0%23.0%
Graduate or professional degree27.1%15.8%

Commute to work

How workers get to work (share)

ZIP 01921ZIP 01930
Drove alone68.3%74.1%
Carpooled3.7%6.6%
Public transit1.4%2.5%
Walked3.0%4.8%
Bicycle0.0%0.0%
Worked from home19.0%10.7%
Other means4.5%1.4%

Housing

Units in structure (share)

ZIP 01921ZIP 01930
1-unit, detached85.1%51.0%
1-unit, attached3.2%4.5%
2 to 4 units5.9%32.0%
5 to 19 units1.9%7.0%
20 or more units2.6%5.2%
Mobile home & other1.4%0.1%

Poverty & households

ZIP 01921ZIP 01930
Poverty rate2.2%10.6%
Average household size2.832.24
Mean commute (minutes)3426
Median year structure built19771944

Full profiles

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