Henniker ZIP Codes — Merrimack County, NH

There is one unique ZIP code in Henniker, New Hampshire and it is 03242. Area code: 603.

ZIP codes

44.12

sq mi land

0.68

sq mi water

603

area code

Henniker, NH ZIP code map

About Henniker, NH

Henniker, NH, is a charming small town located in Merrimack County. Known for its picturesque landscapes and community-oriented atmosphere, it offers residents and visitors a glimpse of New England charm. With a unique blend of outdoor recreational opportunities and cultural landmarks, Henniker has something for everyone.

Location & geography

Henniker is situated in south-central New Hampshire, providing a serene backdrop of rolling hills and beautiful scenery. It is approximately 10 miles from Concord, the state capital, and about 25 miles from Manchester, one of the largest cities in New Hampshire. The town encompasses a land area of 44.12 square miles, with an additional 0.68 square miles of water, consisting primarily of rivers and ponds.

Community & economy

Henniker has a close-knit, friendly community with a character that reflects its rural roots. The local economy is supported by various industries, including education, manufacturing, and small businesses. Daily life in Henniker often revolves around community events, local gatherings, and outdoor activities, fostering a strong sense of belonging among its residents.

Transportation

Henniker is accessible via state routes, specifically New Hampshire Route 114 and New Hampshire Route 202, which connect it to neighboring towns and cities. The nearest major airport is Manchester-Boston Regional Airport, located about 25 miles away, providing convenient air travel options for residents and visitors alike. Public transportation options are limited, emphasizing the need for personal vehicles for travel within the area.

History

Henniker was first settled in the 18th century and officially incorporated in 1768. Historically, the town thrived on agriculture and manufacturing, with notable contributions from mills and the timber industry. Major historical events include the establishment of key community institutions and the development of the local economy throughout the 19th century.

Did you know?

One surprising fact about Henniker is that it is home to New England College, a prominent institution that adds a vibrant educational presence to the town. Additionally, Henniker is known for its annual events, including the famous Henniker Fair, which attracts visitors from surrounding areas.

ZIP codes for Henniker, NH (1)

ZIP code	City	County	Map
03242	Henniker	Merrimack	View map

Demographics & statistics

6,094

Population

34.0

Median age

$76,681

Median household income

$38,098

Per capita income

$272,600

Median home value

$916

Median monthly rent

64.5%

Home ownership

10.1%

Poverty rate

2.1%

Unemployment

1,708

Housing units

35.6%

Bachelor's or higher

Age distribution

Male Female

169

Under 5

147

180

5–9

156

125

10–14

108

293

15–19

254

500

20–24

435

364

25–34

317

321

35–44

279

255

45–54

222

260

55–59

227

148

60–64

128

542

65–74

471

103

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	1,012	16.6%
18 and over	5,082	83.4%
65 and over	1,206	19.8%
Median age	34.0 years

Race & ethnicity

White 95.1%

Two or more races 2.6%

Hispanic or Latino 1.2%

Black or African American 0.6%

Other race 0.3%

Asian 0.3%

Group	Count	%
White	5,860	95.1%
Two or more races	160	2.6%
Hispanic or Latino	71	1.2%
Black or African American	35	0.6%
Other race	21	0.3%
Asian	18	0.3%

Household income

Under $10k 1.6%

$10k–$15k 7.1%

$15k–$25k 9.1%

$25k–$35k 9.8%

$35k–$50k 6.5%

$50k–$75k 15.0%

$75k–$100k 9.9%

$100k–$150k 24.7%

$150k–$200k 6.3%

$200k+ 10.0%

Range	% of households
Under $10k	1.6%
$10k–$15k	7.1%
$15k–$25k	9.1%
$25k–$35k	9.8%
$35k–$50k	6.5%
$50k–$75k	15.0%
$75k–$100k	9.9%
$100k–$150k	24.7%
$150k–$200k	6.3%
$200k+	10.0%
Median income	$76,681

Housing

Home values

Under $50k 1.6%

$50k–$100k 1.5%

$100k–$150k 5.2%

$150k–$200k 2.0%

$200k–$300k 53.0%

$300k–$500k 25.8%

$500k–$1M 10.9%

Housing overview

Metric	Value
Median home value	$272,600
Median rent / month	$916
Owner occupied	64.5%
Renter occupied	35.5%
Vacant	6.4%
Single-family detached	57.5%
Large apartment buildings	0.4%
Mobile homes	4.0%
Median rooms	5.5
Avg household size (owned)	2.68

Year built

Era	%
2020 or later	0.0%
2010–2019	2.0%
2000–2009	6.4%
1990–1999	6.3%
1980–1989	20.4%
1970–1979	27.0%
1960–1969	4.3%
1950–1959	3.6%
1940–1949	8.7%
1939 or earlier	21.4%

Bedrooms

Size	% of units
No bedroom (studio)	10.0%
1 bedroom	15.5%
2 bedrooms	24.7%
3 bedrooms	36.6%
4 bedrooms	12.3%
5+ bedrooms	0.9%

Vehicles per household

Vehicles	% of households
No vehicle	2.9%
1 vehicle	30.3%
2 vehicles	42.8%
3 or more	24.0%

Heating fuel

Fuel type	%
Utility gas	10.6%
Electricity	14.6%
Propane / LP gas	22.8%
Fuel oil	30.0%
Wood	20.4%
No fuel used	1.6%

Households & families

Household type	Count	%
Married-couple family	1,064	44.4%
Cohabiting couple	235	9.8%
Male householder, no spouse	596	24.9%
Female householder, no spouse	502	20.9%
Households with children under 18	572	23.9%
Households with seniors (65+)	812	33.9%
Average household size	2.29

Marital status

Status	Male	Female
Never married	48.7%	35.2%
Married	42.5%	43.5%
Separated	1.1%	1.8%
Widowed	0.3%	1.8%
Divorced	7.4%	17.6%

Education

Less than 9th grade 0.7%

Some HS, no diploma 1.7%

HS graduate 26.6%

Some college, no degree 15.7%

Associate's degree 19.6%

Bachelor's degree 21.7%

Graduate / professional 13.9%

Metric	%
HS diploma or higher	97.6%
Bachelor's or higher	35.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	15	0.9%
Kindergarten	51	3.0%
Elementary school	463	27.5%
High school	128	7.6%
College / grad school	1,024	60.9%

Employment

Industry of employment

Education & healthcare 19.4%

Professional & management 16.0%

Other services 14.0%

Arts, food & hospitality 13.2%

Retail trade 8.6%

Construction 6.4%

Manufacturing 6.4%

Public administration 6.0%

Wholesale trade 4.0%

Finance & real estate 4.0%

Transportation & utilities 1.1%

Agriculture & mining 0.9%

Occupation

Category	%
Management, business & arts	40.9%
Service	17.7%
Sales & office	17.3%
Natural resources & construction	16.4%
Production & transportation	7.7%

Employment type

Type	%
Private sector	78.5%
Government	14.2%
Self-employed	5.9%
Unpaid family workers	1.4%

Commute

Method	%
Drive alone	71.5%
Carpool	8.1%
Public transit	0.0%
Walk	3.7%
Other means	0.2%
Avg commute (minutes)	23.3

Poverty

All people 10.1%

Under 18 years 13.7%

18 and over 9.3%

Married-couple families 0.0%

Female-led households 30.7%

Income support

Source	% of households
Social Security	35.0%
Retirement income	24.9%
Supplemental Security	6.5%
Cash public assistance	0.7%
Food stamps / SNAP	6.5%

Health indicators

Condition	%
High blood pressure	25.1%
High cholesterol	24.9%
Heart disease	4.4%
Stroke	2.1%
Asthma	11.3%
Arthritis	22.0%
Kidney disease	2.1%
Pulmonary disease	5.0%
Cancer	5.4%

Behavior / access	%
Binge drinking	19.9%
No physical activity	15.3%
Less than 7 hrs sleep	31.2%
Fair or poor health	9.9%
Poor mental health	15.6%
Poor physical health	8.4%
No health insurance	9.6%
Visited doctor (checkup)	72.4%
Visited dentist	70.7%
Cholesterol screening	88.2%
Teeth loss	10.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	288	5.7%

Disability	%
Any disability	12.9%
Under 18	7.7%
18–64 years	11.3%
65 and over	22.5%

Health insurance coverage

Type	%
Private insurance	80.1%
Public insurance	31.0%
Uninsured under 19	0.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,778	94.8%
Spanish	88	1.5%
Other Indo-European	21	0.4%
Asian & Pacific Islander	62	1.1%
Other languages	5	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,020	98.8%
Born in same state	6,020	98.8%
Born in different state	3,212	52.7%
Foreign born	0	0.0%
Naturalized citizen	74	1.2%
Not a US citizen	43	58.1%

Ancestry

Ancestry	Count	%
Italian	1,715	28.1%
French	1,451	23.8%
Arab	482	7.9%

Ancestry	Count	%
German	273	4.5%
Polish	39	0.6%
English	29	0.5%

Technology access

Metric	% of households
Computer access	39.3%
Internet access	92.9%

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

Frequently asked questions

What ZIP codes does Henniker, NH have?

Henniker, NH has one ZIP code: 03242. Each ZIP code serves a distinct delivery area within the city and surrounding region.