Danbury ZIP Codes — Merrimack County, NH

There is one unique ZIP code in Danbury, New Hampshire and it is 03230. Area code: 603.

ZIP codes

40.25

sq mi land

0.31

sq mi water

603

area code

Danbury, NH ZIP code map

About Danbury, NH

Danbury, New Hampshire, is a quaint town located in the heart of Merrimack County. Nestled within the picturesque landscapes of New England, this charming community exudes small-town charm and a close-knit atmosphere. As a part of the larger Lakes Region of New Hampshire, Danbury is an attractive destination for both residents and visitors seeking a peaceful retreat.

Location & geography

Danbury is situated approximately 75 miles north of Boston and about 15 miles from the bustling city of Plymouth. The town covers a land area of 40.25 square miles, with an additional 0.31 square miles of water area, primarily consisting of local ponds and streams. The terrain features a mix of rolling hills and lush forests, making it ideal for outdoor activities like hiking and fishing.

Community & economy

Characterized by a supportive and friendly environment, Danbury prides itself on a strong sense of community among its residents. The local economy is predominantly driven by small businesses, agriculture, and tourism, providing a variety of services and products to both locals and visitors. Daily life in Danbury is enriched by numerous recreational opportunities, showcasing the beauty of New Hampshire's natural surroundings.

Transportation

Danbury is conveniently accessible via New Hampshire Route 104, which connects it to nearby cities and recreational areas. The nearest major highway is Interstate 93, providing access to other parts of the state and neighboring regions. For air travel, the closest airport is Lebanon Municipal Airport, located about 30 miles away.

History

Danbury was incorporated in 1765 and initially attracted settlers due to its fertile land and abundant natural resources. Historically, the town was known for its timber and agriculture industries, which played pivotal roles in its early economy. Over the years, Danbury has maintained its small-town identity, making it a serene destination for those interested in the natural beauty and history of New Hampshire.

Did you know?

A surprising fact about Danbury is that it is home to the former Danbury Fair, one of the largest agricultural fairs in New England, which attracted visitors from far and wide. Additionally, the town is renowned for its scenic hiking trails and proximity to several beautiful lakes for fishing and recreation.

ZIP codes for Danbury, NH (1)

ZIP code	City	County	Map
03230	Danbury	Merrimack	View map

Demographics & statistics

1,491

Population

48.4

Median age

$62,500

Median household income

$34,240

Per capita income

$184,100

Median home value

$1,222

Median monthly rent

93.0%

Home ownership

13.0%

Poverty rate

5.1%

Unemployment

736

Housing units

15.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

103

35–44

103

151

45–54

150

55–59

60–64

101

65–74

101

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	277	18.6%
18 and over	1,214	81.4%
65 and over	316	21.2%
Median age	48.4 years

Race & ethnicity

White 96.4%

Two or more races 2.3%

Black or African American 0.5%

Asian 0.3%

American Indian / Alaska Native 0.3%

Group	Count	%
White	1,438	96.4%
Two or more races	35	2.3%
Black or African American	8	0.5%
Asian	5	0.3%
American Indian / Alaska Native	5	0.3%

Household income

Under $10k 5.7%

$10k–$15k 3.1%

$15k–$25k 10.6%

$25k–$35k 5.8%

$35k–$50k 15.9%

$50k–$75k 16.7%

$75k–$100k 16.1%

$100k–$150k 16.4%

$150k–$200k 6.0%

$200k+ 3.9%

Range	% of households
Under $10k	5.7%
$10k–$15k	3.1%
$15k–$25k	10.6%
$25k–$35k	5.8%
$35k–$50k	15.9%
$50k–$75k	16.7%
$75k–$100k	16.1%
$100k–$150k	16.4%
$150k–$200k	6.0%
$200k+	3.9%
Median income	$62,500

Housing

Home values

Under $50k 6.7%

$50k–$100k 10.4%

$100k–$150k 17.3%

$150k–$200k 18.6%

$200k–$300k 23.4%

$300k–$500k 17.8%

$500k–$1M 5.4%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$184,100
Median rent / month	$1,222
Owner occupied	93.0%
Renter occupied	7.0%
Vacant	14.2%
Single-family detached	80.5%
Large apartment buildings	0.0%
Mobile homes	16.6%
Median rooms	5.1
Avg household size (owned)	2.14

Year built

Era	%
2020 or later	0.4%
2010–2019	3.2%
2000–2009	14.4%
1990–1999	4.6%
1980–1989	24.1%
1970–1979	21.8%
1960–1969	4.5%
1950–1959	3.4%
1940–1949	1.4%
1939 or earlier	22.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.3%
1 bedroom	11.0%
2 bedrooms	36.9%
3 bedrooms	29.6%
4 bedrooms	14.7%
5+ bedrooms	5.5%

Vehicles per household

Vehicles	% of households
No vehicle	6.4%
1 vehicle	38.2%
2 vehicles	34.4%
3 or more	21.0%

Heating fuel

Fuel type	%
Utility gas	2.2%
Electricity	4.2%
Propane / LP gas	31.7%
Fuel oil	38.8%
Wood	18.8%

Households & families

Household type	Count	%
Married-couple family	381	56.7%
Cohabiting couple	75	11.2%
Male householder, no spouse	142	21.1%
Female householder, no spouse	74	11.0%
Households with children under 18	144	21.4%
Households with seniors (65+)	227	33.8%
Average household size	2.22

Marital status

Status	Male	Female
Never married	28.3%	11.8%
Married	54.3%	67.5%
Separated	1.1%	3.7%
Widowed	2.8%	1.1%
Divorced	13.4%	15.9%

Education

Less than 9th grade 0.7%

Some HS, no diploma 6.2%

HS graduate 45.4%

Some college, no degree 20.1%

Associate's degree 12.7%

Bachelor's degree 7.9%

Graduate / professional 7.1%

Metric	%
HS diploma or higher	93.1%
Bachelor's or higher	15.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	23	9.0%
Kindergarten	18	7.0%
Elementary school	141	55.1%
High school	48	18.8%
College / grad school	26	10.2%

Employment

Industry of employment

Education & healthcare 20.0%

Retail trade 16.4%

Construction 12.7%

Manufacturing 11.6%

Transportation & utilities 7.5%

Public administration 6.9%

Arts, food & hospitality 6.5%

Other services 5.2%

Wholesale trade 4.1%

Agriculture & mining 3.2%

Finance & real estate 3.1%

Professional & management 1.8%

Information 1.0%

Occupation

Category	%
Management, business & arts	23.0%
Service	21.2%
Sales & office	24.1%
Natural resources & construction	19.2%
Production & transportation	12.6%

Employment type

Type	%
Private sector	77.0%
Government	13.3%
Self-employed	9.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.9%
Carpool	12.1%
Public transit	0.0%
Walk	0.0%
Other means	3.2%
Avg commute (minutes)	38.1

Poverty

All people 13.0%

Under 18 years 26.0%

18 and over 10.0%

Married-couple families 2.4%

Female-led households 48.5%

Income support

Source	% of households
Social Security	34.8%
Retirement income	27.2%
Supplemental Security	6.1%
Cash public assistance	4.2%
Food stamps / SNAP	6.7%

Health indicators

Condition	%
High blood pressure	29.9%
High cholesterol	28.9%
Heart disease	5.5%
Stroke	2.5%
Asthma	10.7%
Arthritis	26.6%
Kidney disease	2.4%
Pulmonary disease	6.0%
Cancer	6.9%

Behavior / access	%
Binge drinking	18.2%
No physical activity	17.0%
Less than 7 hrs sleep	31.7%
Fair or poor health	11.2%
Poor mental health	14.0%
Poor physical health	9.5%
No health insurance	10.0%
Visited doctor (checkup)	73.6%
Visited dentist	70.0%
Cholesterol screening	91.5%
Teeth loss	11.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	141	11.6%

Disability	%
Any disability	15.0%
Under 18	5.8%
18–64 years	13.5%
65 and over	27.5%

Health insurance coverage

Type	%
Private insurance	64.1%
Public insurance	41.7%
Uninsured under 19	6.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,421	95.3%
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)	1,477	99.1%
Born in same state	1,438	96.4%
Born in different state	631	42.3%
Foreign born	39	2.6%
Naturalized citizen	14	0.9%
Not a US citizen	14	100.0%

Ancestry

Ancestry	Count	%
Italian	287	19.2%
French	238	16%
German	76	5.1%
Arab	69	4.6%

Ancestry	Count	%
Irish	11	0.7%
English	10	0.7%
Polish	3	0.2%

Technology access

Metric	% of households
Computer access	45.1%
Internet access	92.0%

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

Frequently asked questions

What ZIP codes does Danbury, NH have?

Danbury, NH has one ZIP code: 03230. Each ZIP code serves a distinct delivery area within the city and surrounding region.