Monroe ZIP Code List — Grafton County, NH

There is one unique ZIP code in Monroe, New Hampshire and it is 03771. Area code: 603.

ZIP codes

22.34

sq mi land

1.49

sq mi water

603

area code

Monroe, NH ZIP code map

About Monroe, NH

Monroe is a quaint town located in Grafton County, New Hampshire. Known for its serene landscapes and small-town charm, it serves as a hidden gem in the northern part of the state. With a rich history and a close-knit community, Monroe offers a unique glimpse into rural New England life.

Location & geography

Monroe is nestled in the northern region of New Hampshire, bordered by the Connecticut River to the west, providing stunning views and recreational opportunities. The town is approximately 10 miles from the larger town of Littleton and about 15 miles from Woodsville, making it easily accessible while still maintaining its peaceful atmosphere. Covering an area of 22.34 square miles of land and 1.49 square miles of water, Monroe features a mix of rolling hills and picturesque waterways.

Community & economy

The character of Monroe reflects a strong sense of community and the values of rural living. Predominantly residential, the town is mainly supported by local industries such as agriculture and small businesses, contributing to its economy and daily life. Residents enjoy a variety of outdoor activities including hiking, fishing, and exploring the natural beauty surrounding them.

Transportation

Monroe is conveniently located near Interstate 93, making it easy to travel to other parts of New Hampshire. The nearest airport is the Lebanon Municipal Airport, which is approximately 30 miles away and offers regional flights. The town has limited public transit options, predominantly serving local travel needs.

History

Monroe was founded in the early 19th century and has maintained its historical charm over the years. The town's economy was historically centered around agriculture and small manufacturing, with notable events such as community fairs and seasonal festivals celebrating its heritage. The blend of natural resources and rural industry has shaped Monroe's development throughout the decades.

Did you know?

A surprising fact about Monroe is its close-knit community that celebrates annual events, fostering a strong bond among residents. Despite its small size, Monroe offers stunning views of the surrounding mountains, making it an attractive destination for nature lovers and outdoor enthusiasts.

ZIP codes for Monroe, NH (1)

ZIP code	City	County	Map
03771	Monroe	Grafton	View map

Demographics & statistics

856

Population

50.7

Median age

$78,958

Median household income

$37,116

Per capita income

$241,800

Median home value

$875

Median monthly rent

91.6%

Home ownership

4.9%

Poverty rate

8.6%

Unemployment

334

Housing units

22.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	177	20.7%
18 and over	679	79.3%
65 and over	218	25.5%
Median age	50.7 years

Race & ethnicity

White 99.1%

Hispanic or Latino 0.5%

Two or more races 0.5%

Group	Count	%
White	852	99.1%
Hispanic or Latino	4	0.5%
Two or more races	4	0.5%

Household income

Under $10k 1.2%

$10k–$15k 4.8%

$15k–$25k 9.3%

$25k–$35k 7.2%

$35k–$50k 7.8%

$50k–$75k 16.7%

$75k–$100k 21.5%

$100k–$150k 14.6%

$150k–$200k 10.7%

$200k+ 6.3%

Range	% of households
Under $10k	1.2%
$10k–$15k	4.8%
$15k–$25k	9.3%
$25k–$35k	7.2%
$35k–$50k	7.8%
$50k–$75k	16.7%
$75k–$100k	21.5%
$100k–$150k	14.6%
$150k–$200k	10.7%
$200k+	6.3%
Median income	$78,958

Housing

Home values

Under $50k 8.8%

$50k–$100k 2.3%

$100k–$150k 6.5%

$150k–$200k 19.9%

$200k–$300k 33.2%

$300k–$500k 23.5%

$500k–$1M 5.9%

Housing overview

Metric	Value
Median home value	$241,800
Median rent / month	$875
Owner occupied	91.6%
Renter occupied	8.4%
Vacant	7.5%
Single-family detached	84.5%
Large apartment buildings	0.0%
Mobile homes	9.7%
Median rooms	5.8
Avg household size (owned)	2.63

Year built

Era	%
2020 or later	0.8%
2010–2019	5.5%
2000–2009	9.9%
1990–1999	9.7%
1980–1989	14.4%
1970–1979	27.9%
1960–1969	9.1%
1950–1959	1.4%
1940–1949	1.9%
1939 or earlier	19.3%

Bedrooms

Size	% of units
No bedroom (studio)	2.2%
1 bedroom	4.4%
2 bedrooms	28.7%
3 bedrooms	48.1%
4 bedrooms	11.3%
5+ bedrooms	5.2%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	31.0%
2 vehicles	47.2%
3 or more	21.8%

Heating fuel

Fuel type	%
Utility gas	0.6%
Electricity	0.6%
Propane / LP gas	19.1%
Fuel oil	55.2%
Wood	22.7%

Households & families

Household type	Count	%
Married-couple family	205	61.2%
Cohabiting couple	20	6.0%
Male householder, no spouse	60	17.9%
Female householder, no spouse	50	14.9%
Households with children under 18	87	26.0%
Households with seniors (65+)	144	43.0%
Average household size	2.56

Marital status

Status	Male	Female
Never married	29.3%	14.0%
Married	53.5%	62.2%
Separated	0.0%	1.0%
Widowed	1.5%	7.9%
Divorced	15.7%	14.9%

Education

Less than 9th grade 11.6%

Some HS, no diploma 4.6%

HS graduate 41.2%

Some college, no degree 14.5%

Associate's degree 5.9%

Bachelor's degree 16.5%

Graduate / professional 5.7%

Metric	%
HS diploma or higher	83.8%
Bachelor's or higher	22.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	16	14.7%
Kindergarten	3	2.8%
Elementary school	42	38.5%
High school	35	32.1%
College / grad school	13	11.9%

Employment

Industry of employment

Education & healthcare 29.4%

Transportation & utilities 15.9%

Retail trade 11.3%

Agriculture & mining 8.9%

Manufacturing 8.1%

Other services 7.3%

Construction 4.9%

Arts, food & hospitality 4.0%

Public administration 4.0%

Professional & management 3.2%

Finance & real estate 2.4%

Wholesale trade 0.3%

Information 0.3%

Occupation

Category	%
Management, business & arts	28.6%
Service	18.9%
Sales & office	10.5%
Natural resources & construction	17.0%
Production & transportation	25.1%

Employment type

Type	%
Private sector	75.2%
Government	18.3%
Self-employed	5.4%
Unpaid family workers	1.1%

Commute

Method	%
Drive alone	85.4%
Carpool	5.9%
Public transit	0.0%
Walk	5.9%
Other means	0.5%
Avg commute (minutes)	27.1

Poverty

All people 4.9%

Under 18 years 0.0%

18 and over 6.0%

Married-couple families 1.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	46.0%
Retirement income	29.9%
Supplemental Security	9.3%
Cash public assistance	0.9%
Food stamps / SNAP	7.2%

Health indicators

Condition	%
High blood pressure	33.2%
High cholesterol	34.0%
Heart disease	8.0%
Stroke	3.6%
Asthma	10.8%
Arthritis	30.8%
Kidney disease	3.3%
Pulmonary disease	8.2%
Cancer	8.7%

Behavior / access	%
Binge drinking	14.5%
No physical activity	20.1%
Less than 7 hrs sleep	30.1%
Fair or poor health	14.6%
Poor mental health	13.7%
Poor physical health	11.7%
No health insurance	10.9%
Visited doctor (checkup)	76.0%
Visited dentist	65.1%
Cholesterol screening	92.8%
Teeth loss	14.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	98	14.5%

Disability	%
Any disability	21.4%
Under 18	3.4%
18–64 years	23.2%
65 and over	32.1%

Health insurance coverage

Type	%
Private insurance	65.6%
Public insurance	48.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	837	97.8%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	852	99.5%
Born in same state	835	97.5%
Born in different state	420	49.1%
Foreign born	17	2.0%
Naturalized citizen	4	0.5%
Not a US citizen	4	100.0%

Ancestry

Ancestry	Count	%
French	151	17.6%
German	130	15.2%
Italian	104	12.1%
Arab	58	6.8%

Ancestry	Count	%
English	4	0.5%
Polish	3	0.4%
Irish	2	0.2%
Dutch	2	0.2%

Technology access

Metric	% of households
Computer access	39.1%
Internet access	82.7%

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

Frequently asked questions

What is the ZIP code for Monroe, NH?

Monroe, NH has one ZIP code: 03771.

What is the main ZIP code for Monroe, NH?

The primary ZIP code for Monroe, NH is 03771. The city uses area code 603 for phone service.

What county is Monroe, NH in?

Monroe is located in Grafton County, New Hampshire.

How many ZIP codes are in Monroe, NH?

Monroe, NH has 1 ZIP code.

What ZIP code should I use when mailing a letter to a business located in downtown Monroe, NH?

All businesses and residences in Monroe, NH use the ZIP code 03771, including those in the downtown area.

If I'm sending a package to someone living near the town center of Monroe in Grafton County, what ZIP code do I need?

You should use ZIP code 03771, which is the single ZIP code that serves all of Monroe, NH including its town center.