US Census Data

ZIP 01518 vs ZIP 01521

A side-by-side comparison of ZIP Code 01518 and ZIP Code 01521: population, income, housing, and more.

ZIP 01518 and ZIP 01521 are ZIP Code areas in Massachusetts. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 01518 has the higher population (2,835 vs 2,576 in ZIP 01521). ZIP 01518 has the higher median household income ($111,193 vs $86,806 in ZIP 01521). ZIP 01518 has the higher median home value ($410,100 vs $288,700 in ZIP 01521).

Population, income & housing

ZIP 01518ZIP 01521
Population2,8352,576
Median age39.0 yrs49.5 yrs
Median household income$111,193$86,806
Median home value$410,100$288,700
Median gross rent$1,051$1,750
Housing units1,2911,524
Homeownership rate72.0%96.0%
Bachelor's degree or higher46.8%34.2%
Unemployment rate9.2%5.8%

Trends (ACS 5-year, 2019–2023)

ZIP 01518ZIP 01521
Population3,947 → 2,835 (-28.2%)2,630 → 2,576 (-2.1%)
Median household income$72,470 → $111,193 (+53.4%)$82,179 → $86,806 (+5.6%)
Median home value$339,100 → $410,100 (+20.9%)$250,600 → $288,700 (+15.2%)
Median gross rent$1,082 → $1,051 (-2.9%)$1,278 → $1,750 (+36.9%)

ZIP 01518

Population
3,9472,835
Median household income
$72,470$111,193
Median home value
$339,100$410,100
Median gross rent
$1,082$1,051

ZIP 01521

Population
2,6302,576
Median household income
$82,179$86,806
Median home value
$250,600$288,700
Median gross rent
$1,278$1,750

Age & race/ethnicity

Age distribution (share)

ZIP 01518ZIP 01521
Under 53.8%4.2%
5 to 1718.1%11.7%
18 to 245.7%6.9%
25 to 3416.5%14.0%
35 to 4416.0%9.3%
45 to 5410.7%10.8%
55 to 6414.6%18.8%
65 to 7410.5%17.9%
75 and over4.1%6.3%

Race & ethnicity (share)

ZIP 01518ZIP 01521
White (non-Hispanic)93.6%88.7%
Black or African American2.2%0.0%
American Indian & Alaska Native0.0%0.6%
Asian0.0%5.7%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races0.9%1.7%
Hispanic or Latino3.3%3.3%

Educational attainment (age 25+)

Share of adults 25+

ZIP 01518ZIP 01521
No high school diploma3.3%5.1%
High school graduate25.9%30.8%
Some college or associate's24.1%29.9%
Bachelor's degree21.1%22.7%
Graduate or professional degree25.7%11.4%

Commute to work

How workers get to work (share)

ZIP 01518ZIP 01521
Drove alone87.6%85.9%
Carpooled1.2%5.4%
Public transit0.0%0.0%
Walked0.0%2.4%
Bicycle0.0%0.0%
Worked from home10.6%6.3%
Other means0.6%0.0%

Housing

Units in structure (share)

ZIP 01518ZIP 01521
1-unit, detached66.0%98.1%
1-unit, attached0.0%0.2%
2 to 4 units7.3%1.0%
5 to 19 units9.1%0.0%
20 or more units16.5%0.0%
Mobile home & other1.2%0.7%

Poverty & households

ZIP 01518ZIP 01521
Poverty rate7.4%5.0%
Average household size2.262.21
Mean commute (minutes)4936
Median year structure built19891976

Full profiles

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ZIP 01518 vs ZIP 01521: Compare Population & Demographics | US Census Data