Groton ZIP Code List — Middlesex County, MA

There are 3 unique ZIP codes in Groton, Massachusetts. Area code: 978.

ZIP codes

32.77

sq mi land

1.01

sq mi water

978

area code

Groton, MA ZIP code map

About Groton, MA

Groton, Massachusetts, is a charming town located within Middlesex County, offering a unique blend of rural charm and modern convenience. With a rich history and scenic landscapes, Groton attracts residents and visitors alike. The town is known for its beautiful historic sites and vibrant community spirit.

Location & geography

Situated in north-central Massachusetts, Groton is approximately 20 miles northwest of Boston and about 10 miles southwest of Nashua, New Hampshire. The town covers a land area of 32.77 square miles, alongside a water area of 1.01 square miles, creating diverse terrain that includes rural landscapes and local waterways. Surrounding cities include Ayer, approximately 6 miles to the south, Westford, about 7 miles to the east, and Pepperell, which lies just 5 miles to the north.

Community & economy

Groton has a tight-knit community character, where residents enjoy a mix of outdoor activities and community events throughout the year. The town's economy is supported by various industries, including local businesses, agriculture, and some light manufacturing. Daily life in Groton offers the tranquility of a small town while still being accessible to the amenities of larger cities nearby.

Transportation

Major highways serving Groton include Route 119 and Route 2, providing convenient access for commuters and travelers alike. The nearest airport is the Nashua Airport, situated about 10 miles away, while Logan International Airport in Boston is approximately 30 miles southeast. Public transportation options are limited, but the nearby Ayer train station offers rail services on the MBTA Fitchburg Line.

History

Groton was first settled in 1655 and was officially incorporated in 1686, making it one of the older towns in Massachusetts. Key industries in the town historically included agriculture and textile manufacturing, which played a significant role in its development. Notable events in Groton's history include its prominent role during the American Revolution and its evolution into a favored residential community over the years.

Did you know?

One surprising fact about Groton is that the town is home to the prestigious Groton School, a well-known private preparatory school founded in 1884. Additionally, the town was the site of the first American census in 1790, showcasing its historical significance.

ZIP codes for Groton, MA (3)

ZIP code	City	County	Map
01450	Groton	Middlesex	View map
01470	Groton	Middlesex	View map
01471	Groton	Middlesex	View map

Demographics & statistics

11,212

Population

41.0

Median age

$186,750

Median household income

$71,901

Per capita income

$628,500

Median home value

$1,171

Median monthly rent

88.0%

Home ownership

4.5%

Poverty rate

4.9%

Unemployment

3,346

Housing units

63.4%

Bachelor's or higher

Age distribution

Male Female

243

Under 5

233

368

5–9

353

614

10–14

589

433

15–19

415

331

20–24

317

450

25–34

432

715

35–44

684

725

45–54

694

500

55–59

479

485

60–64

465

529

65–74

506

257

75–84

247

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,011	26.9%
18 and over	8,201	73.1%
65 and over	1,687	15.0%
Median age	41.0 years

Race & ethnicity

White 82.6%

Two or more races 6.9%

Hispanic or Latino 4.9%

Asian 4.5%

Other race 0.6%

Black or African American 0.4%

Group	Count	%
White	9,748	82.6%
Two or more races	809	6.9%
Hispanic or Latino	583	4.9%
Asian	536	4.5%
Other race	69	0.6%
Black or African American	50	0.4%

Household income

Under $10k 3.1%

$10k–$15k 1.9%

$15k–$25k 3.5%

$25k–$35k 4.4%

$35k–$50k 4.3%

$50k–$75k 5.8%

$75k–$100k 9.6%

$100k–$150k 10.8%

$150k–$200k 10.4%

$200k+ 46.2%

Range	% of households
Under $10k	3.1%
$10k–$15k	1.9%
$15k–$25k	3.5%
$25k–$35k	4.4%
$35k–$50k	4.3%
$50k–$75k	5.8%
$75k–$100k	9.6%
$100k–$150k	10.8%
$150k–$200k	10.4%
$200k+	46.2%
Median income	$186,750

Housing

Home values

Under $50k 0.8%

$100k–$150k 1.3%

$150k–$200k 0.2%

$200k–$300k 6.9%

$300k–$500k 19.7%

$500k–$1M 66.7%

$1M+ 4.5%

Housing overview

Metric	Value
Median home value	$628,500
Median rent / month	$1,171
Owner occupied	88.0%
Renter occupied	12.0%
Vacant	2.4%
Single-family detached	81.9%
Large apartment buildings	4.4%
Mobile homes	0.0%
Median rooms	7.7
Avg household size (owned)	3.13

Year built

Era	%
2020 or later	0.0%
2010–2019	8.4%
2000–2009	11.3%
1990–1999	25.5%
1980–1989	15.3%
1970–1979	6.9%
1960–1969	4.7%
1950–1959	6.4%
1940–1949	2.8%
1939 or earlier	18.5%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	6.5%
2 bedrooms	15.3%
3 bedrooms	26.0%
4 bedrooms	44.2%
5+ bedrooms	6.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	18.8%
2 vehicles	40.8%
3 or more	36.6%

Heating fuel

Fuel type	%
Utility gas	20.9%
Electricity	6.1%
Propane / LP gas	9.9%
Fuel oil	56.2%
Wood	2.7%

Households & families

Household type	Count	%
Married-couple family	2,395	64.7%
Cohabiting couple	183	4.9%
Male householder, no spouse	435	11.8%
Female householder, no spouse	687	18.6%
Households with children under 18	1,532	41.4%
Households with seniors (65+)	1,240	33.5%
Average household size	2.95

Marital status

Status	Male	Female
Never married	27.2%	28.4%
Married	59.7%	54.7%
Separated	1.2%	1.4%
Widowed	3.5%	4.4%
Divorced	8.4%	11.1%

Education

Less than 9th grade 2.3%

Some HS, no diploma 2.0%

HS graduate 14.1%

Some college, no degree 12.6%

Associate's degree 5.6%

Bachelor's degree 34.5%

Graduate / professional 28.9%

Metric	%
HS diploma or higher	95.8%
Bachelor's or higher	63.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	124	3.7%
Kindergarten	177	5.3%
Elementary school	1,528	45.9%
High school	895	26.9%
College / grad school	608	18.2%

Employment

Industry of employment

Education & healthcare 23.9%

Professional & management 20.7%

Manufacturing 16.0%

Arts, food & hospitality 7.7%

Finance & real estate 7.6%

Retail trade 7.2%

Construction 5.0%

Public administration 3.1%

Other services 2.9%

Transportation & utilities 2.8%

Information 1.9%

Agriculture & mining 0.7%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	60.5%
Service	12.7%
Sales & office	15.6%
Natural resources & construction	6.4%
Production & transportation	4.8%

Employment type

Type	%
Private sector	80.8%
Government	13.3%
Self-employed	4.5%
Unpaid family workers	1.3%

Commute

Method	%
Drive alone	67.1%
Carpool	6.7%
Public transit	0.8%
Walk	1.8%
Other means	0.4%
Avg commute (minutes)	32.3

Poverty

All people 4.5%

Under 18 years 2.6%

18 and over 5.2%

Married-couple families 0.0%

Female-led households 12.2%

Income support

Source	% of households
Social Security	26.3%
Retirement income	24.2%
Supplemental Security	3.9%
Cash public assistance	1.4%
Food stamps / SNAP	4.0%

Health indicators

Condition	%
High blood pressure	26.2%
High cholesterol	30.2%
Heart disease	4.6%
Stroke	2.1%
Asthma	9.9%
Arthritis	21.0%
Kidney disease	2.3%
Pulmonary disease	4.2%
Cancer	6.9%

Behavior / access	%
Binge drinking	17.1%
No physical activity	13.8%
Less than 7 hrs sleep	27.5%
Fair or poor health	7.6%
Poor mental health	11.9%
Poor physical health	7.0%
No health insurance	4.0%
Visited doctor (checkup)	76.7%
Visited dentist	79.0%
Cholesterol screening	93.7%
Teeth loss	7.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	237	2.9%

Disability	%
Any disability	7.0%
Under 18	3.3%
18–64 years	3.8%
65 and over	26.5%

Health insurance coverage

Type	%
Private insurance	89.0%
Public insurance	21.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	10,736	95.8%
Spanish	212	2.0%
Other Indo-European	23	0.2%
Asian & Pacific Islander	121	1.1%
Other languages	38	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	10,143	90.5%
Born in same state	9,942	88.7%
Born in different state	6,222	55.5%
Foreign born	201	1.8%
Naturalized citizen	1,069	9.5%
Not a US citizen	583	54.5%

Ancestry

Ancestry	Count	%
Italian	2,544	22.7%
French	1,824	16.3%
Arab	475	4.2%
German	179	1.6%
English	107	1%

Ancestry	Count	%
Polish	105	0.9%
Irish	81	0.7%
Norwegian	47	0.4%
Dutch	36	0.3%

Technology access

Metric	% of households
Computer access	33.0%
Internet access	97.9%

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

Frequently asked questions

What ZIP codes does Groton, MA have?

Groton, MA has 3 ZIP codes: 01450, 01470, 01471. Each ZIP code serves a distinct delivery area within the city and surrounding region.

What is the main ZIP code for Groton, MA?

The primary ZIP code for Groton, MA is 01450. The city uses area code 978 for phone service.

What county is Groton, MA in?

Groton is located in Middlesex County, Massachusetts.

How many ZIP codes are in Groton, MA?

Groton, MA has 3 ZIP codes.

What ZIP code is the Groton town center and downtown area located in?

The Groton town center is located in ZIP code 01450, which serves as the primary commercial and municipal hub of the town.

Which ZIP codes serve the areas around Groton School, the prestigious boarding school in town?

Groton School is located in the 01450 ZIP code area, though the school's campus and surrounding residential areas may also extend into 01470 and 01471.