ZIP Code 01731

ZIP Code Tabulation Area in Middlesex County, Massachusetts.

Population: 1,745
Median household income: $101,194

Covering part of Middlesex County, Massachusetts, ZIP Code 01731 has about 1,745 residents. Its median household income of $101,194 runs below the Middlesex County figure of $126,779.

Between 2019 and 2023, ZIP Code 01731's population declined 15.3% from 2,059 to 1,745, while its median gross rent rose 11.4% from $3,143 to $3,501.

The median resident is 27.9 years old. The largest age group is 5 to 17, 28.3% of residents.

Demographics

ACS 2019–2023

Population: 1,745
Median age: 27.9 yrs
Median household income: $101,194
Median home value: —
Median gross rent: $3,501
Housing units: 495
Homeownership rate: 0.0%
Bachelor's degree or higher: 39.8%
Unemployment rate: 1.1%

Trends

ACS 5-year · 2019–2023

Population

2,0591,745

Median household income

$107,778$101,194

Median gross rent

$3,143$3,501

Year	Population	Median household income	Median gross rent
2019	2,059	$107,778	$3,143
2020	2,119	$105,625	$3,135
2021	1,917	$105,909	$3,031
2022	1,784	$71,250	$3,203
2023	1,745	$101,194	$3,501

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

Age distribution

Under 513.9%

5 to 1728.3%

18 to 246.0%

25 to 3415.5%

35 to 4426.2%

45 to 544.2%

55 to 646.0%

65 to 740.0%

75 and over0.0%

	Count	Share
Under 5	243	13.9%
5 to 17	493	28.3%
18 to 24	104	6.0%
25 to 34	270	15.5%
35 to 44	458	26.2%
45 to 54	73	4.2%
55 to 64	104	6.0%
65 to 74	0	0.0%
75 and over	0	0.0%

Race & ethnicity

	Count	Share
White (non-Hispanic)	609	34.9%
Black or African American	13	0.7%
American Indian & Alaska Native	0	0.0%
Asian	285	16.3%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	73	4.2%
Two or more races	17	1.0%
Hispanic or Latino (any race)	748	42.9%

Educational attainment (age 25+)

No high school diploma0.0%

High school graduate6.6%

Some college or associate's53.6%

Bachelor's degree14.1%

Graduate or professional degree25.6%

	Count	Share
No high school diploma	0	0.0%
High school graduate	60	6.6%
Some college or associate's	485	53.6%
Bachelor's degree	128	14.1%
Graduate or professional degree	232	25.6%

Commute to work

Mean travel time to work: 17 min

Drove alone81.0%

Carpooled0.9%

Public transit2.2%

Walked1.3%

Bicycle0.8%

Worked from home13.9%

Other means0.0%

How workers get to work

	Count	Share
Drove alone	634	81.0%
Carpooled	7	0.9%
Public transit	17	2.2%
Walked	10	1.3%
Bicycle	6	0.8%
Worked from home	109	13.9%
Other means	0	0.0%

Travel time

	Count	Share
Under 15 min	413	61.3%
15 to 29 min	110	16.3%
30 to 44 min	83	12.3%
45 to 59 min	57	8.5%
60+ min	11	1.6%

Households

Average household size: 3.40
Poverty rate: 0.0% (0 of 1,683)

	Count	Share
Family households	397	80.2%
Nonfamily households	98	19.8%

Housing

Median year structure built: 1972

Occupancy

	Count	Share
Occupied	495	100.0%
Vacant	0	0.0%

Tenure (of occupied units)

	Count	Share
Owner-occupied	0	0.0%
Renter-occupied	495	100.0%

1-unit, detached29.7%

1-unit, attached40.2%

2 to 4 units30.1%

5 to 19 units0.0%

20 or more units0.0%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	147	29.7%
1-unit, attached	199	40.2%
2 to 4 units	149	30.1%
5 to 19 units	0	0.0%
20 or more units	0	0.0%
Mobile home & other	0	0.0%

ZIP Code 01731

Demographics

Trends

Age distribution

Race & ethnicity

Educational attainment (age 25+)

Commute to work

Households

Housing

Geography

Counties this ZIP covers

Compare with nearby ZIP codes

National ZIP rankings

Nearby ZIP codes