03740 ZIP Code — Bath, NH

Grafton County, New Hampshire

ZIP code 03740 is located in Bath, New Hampshire, within Grafton County. It covers approximately 37.19 square miles and serves a population of 1,077 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.

About ZIP code 03740

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $195,000. Owner-occupancy is high at 87%, well above the national average.

Median household income is $64,904. 53% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.

Overall, ZIP code 03740 reflects a community defined by high homeownership and a significant Social Security-dependent population.

1,077

population

37.19

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

03740 ZIP code map

Cities in ZIP code 03740

Below are the cities the US Postal Service accepts for ZIP code 03740. Using any city not on this list may result in mail delivery delays.

City	Status
Bath	Preferred

Nearby ZIP codes

05081 Wells River (5.5 mi) 03585 Lisbon (5.6 mi) 03774 North Haverhill (6.2 mi) 05042 East Ryegate (6.3 mi) 03771 Monroe (6.8 mi) 03785 Woodsville (7.8 mi) 05051 Newbury (8.5 mi) 05069 South Ryegate (8.8 mi) 03780 Pike (9.9 mi) 03765 Haverhill (10.1 mi) 05821 Barnet (10.7 mi) 05076 Topsham (12.9 mi)

Demographics updated 05/2026

Population
Total population	1,077
Population density	29 / sq mi
State FIPS	33
County FIPS	009

Geography
Land area	37.19 sq mi
Water area	0.82 sq mi
Latitude	44.1767
Longitude	-71.9894
Timezone	Eastern (ET)
Area code	603

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	36.1%	37.5%	31.0%
$50k – $100k	40.4%	32.1%	31.2%
$100k – $200k	17.2%	21.7%	28.1%
Over $200k	6.3%	8.6%	9.7%

Demographics & statistics

1,077

Population

People per sq mi

53.6

Median age

$64,904

Median household income

$35,076

Per capita income

$195,000

Median home value

$1,292

Median monthly rent

87.2%

Home ownership

7.9%

Poverty rate

6.6%

Unemployment

448

Housing units

29.0%

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

116

65–74

105

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	191	17.7%
18 and over	886	82.3%
65 and over	314	29.2%
Median age	53.6 years

Race & ethnicity

White 92.9%

Two or more races 4.3%

Hispanic or Latino 2.5%

American Indian / Alaska Native 0.2%

Group	Count	%
White	1,027	92.9%
Two or more races	48	4.3%
Hispanic or Latino	28	2.5%
American Indian / Alaska Native	2	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	36.1%	37.5%	31.0%
$50k – $100k	40.4%	32.1%	31.2%
$100k – $200k	17.2%	21.7%	28.1%
Over $200k	6.3%	8.6%	9.7%

Under $10k 0.7%

$10k–$15k 8.6%

$15k–$25k 5.6%

$25k–$35k 12.5%

$35k–$50k 12.8%

$50k–$75k 19.3%

$75k–$100k 11.1%

$100k–$150k 16.2%

$150k–$200k 4.2%

$200k+ 9.0%

Range	% of households
Under $10k	0.7%
$10k–$15k	8.6%
$15k–$25k	5.6%
$25k–$35k	12.5%
$35k–$50k	12.8%
$50k–$75k	19.3%
$75k–$100k	11.1%
$100k–$150k	16.2%
$150k–$200k	4.2%
$200k+	9.0%
Median income	$64,904

Housing

Home values

Under $50k 10.4%

$50k–$100k 10.6%

$100k–$150k 13.0%

$150k–$200k 18.1%

$200k–$300k 21.3%

$300k–$500k 20.2%

$500k–$1M 3.2%

$1M+ 3.2%

Housing overview

Metric	Value
Median home value	$195,000
Median rent / month	$1,292
Owner occupied	87.2%
Renter occupied	12.8%
Vacant	14.3%
Single-family detached	78.3%
Large apartment buildings	0.0%
Mobile homes	16.1%
Median rooms	5.7
Avg household size (owned)	2.39

Year built

Era	%
2020 or later	0.0%
2010–2019	6.6%
2000–2009	13.1%
1990–1999	8.2%
1980–1989	11.1%
1970–1979	22.5%
1960–1969	5.0%
1950–1959	2.6%
1940–1949	1.8%
1939 or earlier	29.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.6%
1 bedroom	5.0%
2 bedrooms	37.8%
3 bedrooms	39.8%
4 bedrooms	12.3%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.6%
1 vehicle	33.9%
2 vehicles	44.8%
3 or more	19.7%

Heating fuel

Fuel type	%
Utility gas	3.9%
Electricity	1.6%
Propane / LP gas	16.9%
Fuel oil	40.1%
Wood	36.0%

Households & families

Household type	Count	%
Married-couple family	238	55.2%
Cohabiting couple	25	5.8%
Male householder, no spouse	79	18.3%
Female householder, no spouse	89	20.6%
Households with children under 18	114	26.5%
Households with seniors (65+)	205	47.6%
Average household size	2.50

Marital status

Status	Male	Female
Never married	23.2%	21.3%
Married	57.3%	59.1%
Separated	0.6%	0.0%
Widowed	7.4%	8.1%
Divorced	11.6%	11.5%

Education

Less than 9th grade 1.4%

Some HS, no diploma 7.8%

HS graduate 34.1%

Some college, no degree 17.1%

Associate's degree 10.5%

Bachelor's degree 19.2%

Graduate / professional 9.8%

Metric	%
HS diploma or higher	90.7%
Bachelor's or higher	29.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	11	5.7%
Kindergarten	6	3.1%
Elementary school	92	47.4%
High school	70	36.1%
College / grad school	15	7.7%

Employment

Industry of employment

Education & healthcare 44.0%

Retail trade 13.1%

Arts, food & hospitality 9.1%

Public administration 8.1%

Other services 4.8%

Manufacturing 4.6%

Finance & real estate 4.4%

Professional & management 4.2%

Construction 3.8%

Agriculture & mining 2.6%

Information 0.6%

Transportation & utilities 0.4%

Occupation

Category	%
Management, business & arts	38.8%
Service	21.4%
Sales & office	23.8%
Natural resources & construction	11.9%
Production & transportation	4.0%

Employment type

Type	%
Private sector	73.5%
Government	19.8%
Self-employed	6.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.5%
Carpool	2.7%
Public transit	0.4%
Walk	6.0%
Work from home	4.1%
Other means	2.3%
Avg commute (minutes)	25.6

Poverty

All people 7.9%

Under 18 years 17.8%

18 and over 5.8%

Married-couple families 0.0%

Female-led households 51.2%

Income support

Source	% of households
Social Security	52.9%
Retirement income	32.7%
Supplemental Security	11.6%
Cash public assistance	1.4%
Food stamps / SNAP	7.7%

Health indicators

Condition	%
Obesity	33.6%
High blood pressure	31.1%
High cholesterol	34.6%
Diabetes	10.0%
Heart disease	7.4%
Stroke	3.2%
Asthma	10.9%
Arthritis	28.5%
Kidney disease	3.0%
Pulmonary disease	7.7%
Cancer	7.8%

Behavior / access	%
Smoking	16.6%
Binge drinking	15.7%
No physical activity	19.3%
Less than 7 hrs sleep	30.3%
Depression	23.4%
Fair or poor health	13.9%
Poor mental health	14.4%
Poor physical health	11.3%
No health insurance	10.9%
Visited doctor (checkup)	74.5%
Visited dentist	64.9%
Cholesterol screening	91.4%
Teeth loss	13.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	96	10.8%

Disability	%
Any disability	16.2%
Under 18	3.7%
18–64 years	9.1%
65 and over	36.6%

Health insurance coverage

Type	%
Private insurance	63.9%
Public insurance	49.8%
No insurance	5.1%
Uninsured under 19	3.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,048	97.3%
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)	1,075	99.8%
Born in same state	1,071	99.4%
Born in different state	596	55.3%
Foreign born	4	0.4%
Naturalized citizen	2	0.2%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	308	28.6%
Italian	194	18%
German	71	6.6%
Arab	41	3.8%

Ancestry	Count	%
Irish	26	2.4%
Norwegian	10	0.9%
Polish	8	0.7%
English	5	0.5%

Technology access

Metric	% of households
Computer access	40.0%
Internet access	89.8%

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

Frequently asked questions about ZIP code 03740

What city is ZIP code 03740 in?

ZIP code 03740 is primarily assigned to Bath, New Hampshire.

What county is ZIP code 03740 in?

ZIP code 03740 falls within Grafton County, New Hampshire.

Does ZIP code 03740 have an older population?

29% of residents in ZIP code 03740 are 65 or older, above the national average of ~17%.

Does ZIP code 03740 have a large retiree population?

53% of households in ZIP code 03740 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 03740 mostly owner-occupied?

87% of occupied units in ZIP code 03740 are owner-occupied, well above the national average.

Does ZIP code 03740 have a large veteran population?

11% of civilians in ZIP code 03740 are veterans, above the national average of ~7%.

What timezone is ZIP code 03740 in?

ZIP code 03740 observes the EST timezone.