01720 ZIP Code — Acton, MA

Middlesex County, Massachusetts

ZIP code 01720 is located in Acton, Massachusetts, within Middlesex County. It covers approximately 19.62 square miles and serves a population of 23,081 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 978/508/781.

About ZIP code 01720

The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $704,100. Owner-occupancy sits near the national average at 74%.

The gap between median ($151,339) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 3% is below the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 35 minutes is near the national average. Remote work is prevalent — 31% of workers work from home.

Educational attainment is high — 77% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 01720 reflects a community defined by a highly educated population and a high rate of remote workers.

23,081

population

19.62

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

01720 ZIP code map

Cities in ZIP code 01720

Below are the cities the US Postal Service accepts for ZIP code 01720. Using any city not on this list may result in mail delivery delays.

City	Status
Acton	Acceptable
Acton	Preferred

Nearby ZIP codes

01718 Acton (2.5 mi) 01754 Maynard (4 mi) 01719 Boxborough (4 mi) 01742 Concord (4.2 mi) 01460 Littleton (4.4 mi) 01775 Stow (5 mi) 01741 Carlisle (5.5 mi) 01776 Sudbury (6.6 mi) 01886 Westford (7.2 mi) 01451 Harvard (7.3 mi) 01773 Lincoln (7.6 mi) 01731 Hanscom Afb (8 mi)

Demographics updated 05/2026

Population
Total population	23,081
Population density	1,176 / sq mi
State FIPS	25
County FIPS	017

Geography
Land area	19.62 sq mi
Water area	0.43 sq mi
Latitude	42.4842
Longitude	-71.4395
Timezone	Eastern (ET)
Area code	978/508/781

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.0%	23.8%	31.3%
$50k – $100k	18.0%	23.1%	25.9%
$100k – $200k	31.6%	32.1%	28.5%
Over $200k	31.4%	20.9%	14.3%

Demographics & statistics

23,081

Population

1,176

People per sq mi

44.2

Median age

$151,339

Median household income

$74,106

Per capita income

$704,100

Median home value

$1,778

Median monthly rent

73.6%

Home ownership

2.7%

Poverty rate

5.3%

Unemployment

6,585

Housing units

77.1%

Bachelor's or higher

Age distribution

Male Female

472

Under 5

522

755

5–9

837

805

10–14

892

976

15–19

1,081

376

20–24

416

718

25–34

796

1,553

35–44

1,719

1,793

45–54

1,985

1,027

55–59

1,138

682

60–64

756

973

65–74

1,077

515

75–84

571

307

85+

339

← Male

Female →

Age summary

Group	Count	%
Under 18	5,733	24.8%
18 and over	17,348	75.2%
65 and over	3,782	16.4%
Median age	44.2 years

Race & ethnicity

White 60.9%

Asian 23.8%

Two or more races 6.2%

Hispanic or Latino 4.4%

Black or African American 3.7%

Other race 1%

Group	Count	%
White	14,705	60.9%
Asian	5,755	23.8%
Two or more races	1,492	6.2%
Hispanic or Latino	1,054	4.4%
Black or African American	886	3.7%
Other race	243	1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.0%	23.8%	31.3%
$50k – $100k	18.0%	23.1%	25.9%
$100k – $200k	31.6%	32.1%	28.5%
Over $200k	31.4%	20.9%	14.3%

Under $10k 2.3%

$10k–$15k 2.1%

$15k–$25k 2.7%

$25k–$35k 2.4%

$35k–$50k 6.9%

$50k–$75k 9.6%

$75k–$100k 9.0%

$100k–$150k 14.4%

$150k–$200k 10.2%

$200k+ 40.2%

Range	% of households
Under $10k	2.3%
$10k–$15k	2.1%
$15k–$25k	2.7%
$25k–$35k	2.4%
$35k–$50k	6.9%
$50k–$75k	9.6%
$75k–$100k	9.0%
$100k–$150k	14.4%
$150k–$200k	10.2%
$200k+	40.2%
Median income	$151,339

Housing

Home values

Under $50k 0.4%

$50k–$100k 0.6%

$100k–$150k 1.2%

$150k–$200k 2.2%

$200k–$300k 4.6%

$300k–$500k 8.3%

$500k–$1M 71.5%

$1M+ 11.3%

Housing overview

Metric	Value
Median home value	$704,100
Median rent / month	$1,778
Owner occupied	73.6%
Renter occupied	26.4%
Vacant	1.7%
Single-family detached	64.8%
Large apartment buildings	9.8%
Mobile homes	0.0%
Median rooms	7.0
Avg household size (owned)	2.81

Year built

Era	%
2020 or later	0.2%
2010–2019	6.6%
2000–2009	10.9%
1990–1999	12.4%
1980–1989	9.8%
1970–1979	19.5%
1960–1969	17.7%
1950–1959	12.0%
1940–1949	2.2%
1939 or earlier	8.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	12.4%
2 bedrooms	22.2%
3 bedrooms	21.9%
4 bedrooms	38.0%
5+ bedrooms	5.0%

Vehicles per household

Vehicles	% of households
No vehicle	3.7%
1 vehicle	31.3%
2 vehicles	47.1%
3 or more	17.9%

Heating fuel

Fuel type	%
Utility gas	54.0%
Electricity	14.7%
Propane / LP gas	5.0%
Fuel oil	25.6%
Wood	0.5%
Solar	0.1%

Households & families

Household type	Count	%
Married-couple family	5,597	64.0%
Cohabiting couple	283	3.2%
Male householder, no spouse	1,039	11.9%
Female householder, no spouse	1,824	20.9%
Households with children under 18	3,407	39.0%
Households with seniors (65+)	2,606	29.8%
Average household size	2.62

Marital status

Status	Male	Female
Never married	25.5%	25.2%
Married	67.3%	58.5%
Separated	0.2%	0.3%
Widowed	1.7%	7.1%
Divorced	5.3%	8.8%

Education

Less than 9th grade 1.3%

Some HS, no diploma 1.6%

HS graduate 6.9%

Some college, no degree 9.3%

Associate's degree 3.7%

Bachelor's degree 32.1%

Graduate / professional 45.0%

Metric	%
HS diploma or higher	97.0%
Bachelor's or higher	77.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	432	6.8%
Kindergarten	228	3.6%
Elementary school	2,675	42.0%
High school	1,945	30.6%
College / grad school	1,084	17.0%

Employment

Industry of employment

Professional & management 29.0%

Education & healthcare 25.9%

Manufacturing 10.6%

Retail trade 8.4%

Finance & real estate 6.6%

Information 3.8%

Arts, food & hospitality 3.7%

Construction 3.1%

Other services 2.7%

Public administration 2.1%

Wholesale trade 2.0%

Transportation & utilities 1.7%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	74.1%
Service	7.2%
Sales & office	13.7%
Natural resources & construction	1.9%
Production & transportation	3.1%

Employment type

Type	%
Private sector	81.8%
Government	10.9%
Self-employed	7.1%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	59.0%
Carpool	4.3%
Public transit	3.5%
Walk	1.6%
Work from home	30.9%
Other means	0.7%
Avg commute (minutes)	34.8

Poverty

All people 2.7%

Under 18 years 1.7%

18 and over 3.0%

Married-couple families 0.3%

Female-led households 7.9%

Income support

Source	% of households
Social Security	24.0%
Retirement income	17.1%
Supplemental Security	2.5%
Cash public assistance	2.0%
Food stamps / SNAP	3.9%

Health indicators

Condition	%
Obesity	19.2%
High blood pressure	25.1%
High cholesterol	29.9%
Diabetes	6.8%
Heart disease	4.2%
Stroke	1.9%
Asthma	9.0%
Arthritis	19.3%
Kidney disease	2.1%
Pulmonary disease	3.4%
Cancer	6.7%

Behavior / access	%
Smoking	7.6%
Binge drinking	15.5%
No physical activity	13.2%
Less than 7 hrs sleep	26.8%
Depression	15.8%
Fair or poor health	6.6%
Poor mental health	10.6%
Poor physical health	6.0%
No health insurance	3.9%
Visited doctor (checkup)	76.9%
Visited dentist	80.2%
Cholesterol screening	94.1%
Teeth loss	5.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	860	5.0%

Disability	%
Any disability	7.8%
Under 18	3.2%
18–64 years	6.1%
65 and over	21.2%

Health insurance coverage

Type	%
Private insurance	84.5%
Public insurance	25.5%
No insurance	2.1%
Uninsured under 19	0.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	22,087	95.7%
Spanish	1,812	8.2%
Other Indo-European	170	0.8%
Asian & Pacific Islander	788	3.6%
Other languages	854	3.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	16,591	71.9%
Born in same state	16,114	69.8%
Born in different state	9,964	43.2%
Foreign born	477	2.1%
Naturalized citizen	6,490	28.1%
Not a US citizen	3,288	50.7%

Ancestry

Ancestry	Count	%
Italian	3,528	15.3%
French	2,728	11.8%
German	455	2%
Arab	397	1.7%
Norwegian	227	1%

Ancestry	Count	%
Polish	144	0.6%
English	143	0.6%
Dutch	59	0.3%
Irish	57	0.2%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	97.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 01720

What city is ZIP code 01720 in?

ZIP code 01720 is primarily assigned to Acton, Massachusetts.

What county is ZIP code 01720 in?

ZIP code 01720 falls within Middlesex County, Massachusetts.

How educated is the population of ZIP code 01720?

77% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 01720?

The median household income in ZIP code 01720 is $151,339, above the national median of ~$75,000.

What is the typical home value in ZIP code 01720?

The median home value in ZIP code 01720 is $704,100.

What is the population of ZIP code 01720?

ZIP code 01720 has an estimated population of 23,081 residents, with a density of 1,176 people per square mile.

What timezone is ZIP code 01720 in?

ZIP code 01720 observes the EST timezone.