ZIP Code 02421

ZIP Code Tabulation Area in Middlesex County, Massachusetts.

Population: 17,798
Median household income: $212,843
Median home value: $1,147,700

Covering part of Middlesex County, Massachusetts, ZIP Code 02421 has about 17,798 residents. The median household income of $212,843 is above the Middlesex County median ($126,779).

From 2019 to 2023, ZIP Code 02421's population declined 4.4% from 18,622 to 17,798, while its median gross rent rose 10.9% from $2,568 to $2,847.

53.8% of workers drive to work alone. 68.6% of homes are single-family detached houses.

Demographics

ACS 2019–2023

Population: 17,798
Median age: 47.7 yrs
Median household income: $212,843
Median home value: $1,147,700
Median gross rent: $2,847
Housing units: 6,913
Homeownership rate: 76.3%
Bachelor's degree or higher: 84.7%
Unemployment rate: 2.2%

Trends

ACS 5-year · 2019–2023

Population

18,62217,798

Median household income

$178,358$212,843

Median home value

$887,800$1,147,700

Median gross rent

$2,568$2,847

Year	Population	Median household income	Median home value	Median gross rent
2019	18,622	$178,358	$887,800	$2,568
2020	18,578	$180,943	$933,300	$2,580
2021	18,784	$191,140	$973,400	$2,691
2022	17,865	$200,294	$1,086,500	$2,968
2023	17,798	$212,843	$1,147,700	$2,847

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 52.4%

5 to 1723.3%

18 to 243.6%

25 to 343.8%

35 to 4410.6%

45 to 5420.0%

55 to 6413.6%

65 to 7410.8%

75 and over11.9%

	Count	Share
Under 5	421	2.4%
5 to 17	4,143	23.3%
18 to 24	634	3.6%
25 to 34	676	3.8%
35 to 44	1,894	10.6%
45 to 54	3,568	20.0%
55 to 64	2,427	13.6%
65 to 74	1,919	10.8%
75 and over	2,116	11.9%

Race & ethnicity

	Count	Share
White (non-Hispanic)	9,925	55.8%
Black or African American	273	1.5%
American Indian & Alaska Native	0	0.0%
Asian	6,132	34.5%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	229	1.3%
Two or more races	738	4.1%
Hispanic or Latino (any race)	501	2.8%

Educational attainment (age 25+)

No high school diploma3.0%

High school graduate5.1%

Some college or associate's7.2%

Bachelor's degree25.7%

Graduate or professional degree59.0%

	Count	Share
No high school diploma	374	3.0%
High school graduate	647	5.1%
Some college or associate's	902	7.2%
Bachelor's degree	3,241	25.7%
Graduate or professional degree	7,436	59.0%

Commute to work

Mean travel time to work: 31 min

Drove alone53.8%

Carpooled3.9%

Public transit5.0%

Walked2.1%

Bicycle0.9%

Worked from home33.7%

Other means0.7%

How workers get to work

	Count	Share
Drove alone	4,553	53.8%
Carpooled	326	3.9%
Public transit	423	5.0%
Walked	179	2.1%
Bicycle	75	0.9%
Worked from home	2,849	33.7%
Other means	55	0.7%

Travel time

	Count	Share
Under 15 min	1,130	20.1%
15 to 29 min	1,509	26.9%
30 to 44 min	1,251	22.3%
45 to 59 min	1,199	21.4%
60+ min	522	9.3%

Households

Average household size: 2.60
Poverty rate: 6.0% (1,061 of 17,651)

	Count	Share
Family households	5,128	75.8%
Nonfamily households	1,637	24.2%

Housing

Median year structure built: 1966

Occupancy

	Count	Share
Occupied	6,765	97.9%
Vacant	148	2.1%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,162	76.3%
Renter-occupied	1,603	23.7%

1-unit, detached68.6%

1-unit, attached7.5%

2 to 4 units4.9%

5 to 19 units8.2%

20 or more units10.8%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	4,742	68.6%
1-unit, attached	519	7.5%
2 to 4 units	340	4.9%
5 to 19 units	568	8.2%
20 or more units	744	10.8%
Mobile home & other	0	0.0%

Geography

ZCTA: 02421
Land area: 9.57 sq mi
Water area: 0.16 sq mi
Center point: 42.4385, -71.2396

Counties this ZIP covers

Middlesex County, Massachusetts (100%)

Compare with nearby ZIP codes

ZIP 02421 vs 02420

Nearby ZIP codes

02420