03230 ZIP Code — Danbury, NH

Merrimack County, New Hampshire

ZIP code 03230 is located in Danbury, New Hampshire, within Merrimack County. It covers approximately 40.25 square miles and serves a population of 1,491 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03230

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $184,100. Owner-occupancy is high at 93%, well above the national average.

Median household income is $62,500. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. An above-average commute of 38 minutes suggests many residents work outside the immediate area.

College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.

Overall, ZIP code 03230 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.

1,491

population

40.25

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03230 ZIP code map

Cities in ZIP code 03230

Below are the cities the US Postal Service accepts for ZIP code 03230. Using any city not on this list may result in mail delivery delays.

City	Status
Danbury	Preferred

Nearby ZIP codes

03243 Hill (4.8 mi) 03216 Andover (6.5 mi) 03240 Grafton (6.5 mi) 03222 Bristol (6.9 mi) 03287 Wilmot (7.2 mi) 03233 Elkins (8.1 mi) 03284 Springfield (9.1 mi) 03257 New London (10.2 mi) 03235 Franklin (10.6 mi) 03268 Salisbury (12.1 mi) 03269 Sanbornton (12.5 mi) 03741 Canaan (12.8 mi)

Demographics updated 06/2026

Population
Total population	1,491
Population density	37 / sq mi
State FIPS	33
County FIPS	013

Geography
Land area	40.25 sq mi
Water area	0.31 sq mi
Latitude	43.5322
Longitude	-71.8516
Timezone	Eastern (ET)
Area code	603

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	43.2%	30.8%	31.0%
$50k – $100k	35.5%	32.4%	31.2%
$100k – $200k	16.5%	28.6%	28.1%
Over $200k	4.8%	8.1%	9.7%

Demographics & statistics

1,491

Population

People per sq mi

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

Income range	This ZIP	County avg	State avg
Under $50k	43.2%	30.8%	31.0%
$50k – $100k	35.5%	32.4%	31.2%
$100k – $200k	16.5%	28.6%	28.1%
Over $200k	4.8%	8.1%	9.7%

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%
Work from home	8.8%
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	%
Obesity	29.5%
High blood pressure	29.9%
High cholesterol	28.9%
Diabetes	8.0%
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	%
Smoking	15.5%
Binge drinking	18.2%
No physical activity	17.0%
Less than 7 hrs sleep	31.7%
Depression	24.0%
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%
No insurance	13.2%
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 about ZIP code 03230

What city is ZIP code 03230 in?

ZIP code 03230 is primarily assigned to Danbury, New Hampshire.

What county is ZIP code 03230 in?

ZIP code 03230 falls within Merrimack County, New Hampshire.

Is ZIP code 03230 mostly owner-occupied?

93% of occupied units in ZIP code 03230 are owner-occupied, well above the national average.

Does ZIP code 03230 have a large veteran population?

12% of civilians in ZIP code 03230 are veterans, above the national average of ~7%.

What is the typical home value in ZIP code 03230?

The median home value in ZIP code 03230 is $184,100.

What is the population of ZIP code 03230?

ZIP code 03230 has an estimated population of 1,491 residents, with a density of 37 people per square mile.

What timezone is ZIP code 03230 in?

ZIP code 03230 observes the EST timezone.