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ZIP CODE TABULATION AREA

01720

Massachusetts · 23,526 residents · 19.6 sq mi
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With 23,526 people, ZIP 01720 is a ZIP code in Middlesex County. This is an unusually credentialed place: 79% of adults have a four-year degree. The typical home is worth $814,300. The median household earns $159,010, about 93% above the national median. The median age is 44.5, about 6 years above the US median. The foreign-born share is 29%. Among the 81 ZIP codes in Middlesex County, 01720 ranks 28th by median household income.

$159,010
US average: $82,259
$81,175
US average: $44,673
$814,300
US average: $376,019
79.3%
US average: 35.6%
Land area
19.6 sq mi
Age, sex & households
Under 18
23.2%
Age 65+
17.2%
47.8%
52.2%
2.56 people
Race & ethnicity · 2024
2024
White, non-Hispanic58.2%(13,686)
Black4.8%(1,135)
Hispanic / Latino4.2%(984)
Asian25.8%(6,067)
Other7%(1,654)
73
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
5.1
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Middlesex County
Income rank vs other ZIPs
LOWEST28TH OF 81HIGHEST
Adjacent ZIPs
01431$115,598
01432$101,966
01450$193,292
01460$149,722
Frequently asked

How many people live in ZIP code 01720?

ZIP code 01720 has about 23,526 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 01720?

The typical household in ZIP code 01720 earns about $159,010 a year. Half of households make more than that, and half make less.

Is ZIP code 01720 expensive?

In ZIP code 01720, the median home is worth about $814,300, and the typical rent is about $1,982 a month.

How educated are people in ZIP code 01720?

About 79.3% of adults age 25 and over in ZIP code 01720 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 01720?

About 3.5% of people in ZIP code 01720 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024