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New Hampshire ZIP Codes
Carroll County
Conway, NH
03818
03818 ZIP Code — Conway, NH
Carroll County, New Hampshire
ZIP code 03818 is located in
Conway ,
New Hampshire ,
within Carroll County .
It covers approximately 84.45 square miles and serves a population of
3,751 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 603 .
About ZIP code 03818
The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $256,000. Owner-occupancy sits near the national average at 71%.
Median household income is $69,071. 49% 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 17 minutes is near the national average.
Educational attainment is near the national average, with 42% of residents holding a bachelor's degree or higher.
03818 ZIP code map
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Cities in ZIP code 03818
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
3,751
Population density
44 / sq mi
State FIPS
33
County FIPS
003
Geography
Land area
84.45 sq mi
Water area
1.15 sq mi
Latitude
43.9666
Longitude
-71.2363
Timezone
Eastern (ET)
Area code
603
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.1%
37.9%
31.0%
$50k – $100k
33.0%
32.8%
31.2%
$100k – $200k
19.3%
22.6%
28.1%
Over $200k
5.6%
6.7%
9.7%
Demographics & statistics
$69,071
Median household income
$256,000
Median home value
41.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 552 14.7%
18 and over 3,199 85.3%
65 and over 844 22.5%
Median age 41.6 years
Race & ethnicity
Black or African American
0.1%
Group Count %
White 3,482 90.5%
Two or more races 143 3.7%
Hispanic or Latino 98 2.5%
Asian 96 2.5%
Other race 25 0.6%
Black or African American 5 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.1%
37.9%
31.0%
$50k – $100k
33.0%
32.8%
31.2%
$100k – $200k
19.3%
22.6%
28.1%
Over $200k
5.6%
6.7%
9.7%
Range % of households
Under $10k 2.5%
$10k–$15k 9.2%
$15k–$25k 14.7%
$25k–$35k 9.9%
$35k–$50k 7.9%
$50k–$75k 11.3%
$75k–$100k 15.0%
$100k–$150k 17.3%
$150k–$200k 2.0%
$200k+ 10.2%
Median income $69,071
Housing
Housing overview
Metric Value
Median home value $256,000
Median rent / month $954
Owner occupied 70.9%
Renter occupied 29.1%
Vacant 28.6%
Single-family detached 67.0%
Large apartment buildings 7.9%
Mobile homes 11.0%
Median rooms 5.4
Avg household size (owned) 2.89
Year built
Era %
2020 or later 0.0%
2010–2019 14.6%
2000–2009 18.0%
1990–1999 2.0%
1980–1989 19.4%
1970–1979 15.8%
1960–1969 4.6%
1950–1959 5.0%
1940–1949 3.0%
1939 or earlier 17.7%
Bedrooms
Size % of units
No bedroom (studio) 2.3%
1 bedroom 13.8%
2 bedrooms 22.4%
3 bedrooms 43.7%
4 bedrooms 13.9%
5+ bedrooms 3.9%
Vehicles per household
Vehicles % of households
No vehicle 11.0%
1 vehicle 36.5%
2 vehicles 35.5%
3 or more 17.0%
Heating fuel
Fuel type %
Utility gas 2.3%
Electricity 3.6%
Propane / LP gas 35.5%
Fuel oil 40.8%
Wood 9.7%
Solar 1.4%
No fuel used 3.9%
Households & families
Household type Count %
Married-couple family 718 48.1%
Cohabiting couple 45 3.0%
Male householder, no spouse 255 17.1%
Female householder, no spouse 474 31.8%
Households with children under 18 333 22.3%
Households with seniors (65+) 707 47.4%
Average household size 2.51
Marital status
Status Male Female
Never married 46.4% 28.0%
Married 44.1% 45.9%
Separated 0.2% 2.2%
Widowed 5.2% 11.5%
Divorced 4.1% 12.5%
Education
Some college, no degree
20.0%
Graduate / professional
13.3%
Metric %
HS diploma or higher 95.7%
Bachelor's or higher 41.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 19 2.3%
Kindergarten 50 6.0%
Elementary school 290 34.6%
High school 117 13.9%
College / grad school 363 43.3%
Employment
Industry of employment
Education & healthcare
34.1%
Arts, food & hospitality
14.3%
Professional & management
3.9%
Transportation & utilities
3.5%
Finance & real estate
3.3%
Public administration
2.5%
Agriculture & mining
0.3%
Occupation
Category %
Management, business & arts 39.5%
Service 18.4%
Sales & office 22.8%
Natural resources & construction 16.3%
Production & transportation 3.0%
Employment type
Type %
Private sector 79.7%
Government 12.7%
Self-employed 7.5%
Unpaid family workers 0.1%
Commute
Method %
Drive alone 76.2%
Carpool 2.6%
Public transit 0.0%
Walk 2.2%
Work from home 19.0%
Other means 0.0%
Avg commute (minutes) 17.1
Poverty
Married-couple families
6.1%
Female-led households
0.0%
Income support
Source % of households
Social Security 48.5%
Retirement income 22.8%
Supplemental Security 1.3%
Cash public assistance 1.0%
Food stamps / SNAP 4.0%
Health indicators
Condition %
Obesity 29.8%
High blood pressure 30.9%
High cholesterol 32.4%
Diabetes 9.3%
Heart disease 6.7%
Stroke 3.1%
Asthma 11.1%
Arthritis 26.9%
Kidney disease 2.9%
Pulmonary disease 7.4%
Cancer 7.1%
Behavior / access %
Smoking 17.2%
Binge drinking 16.6%
No physical activity 22.1%
Less than 7 hrs sleep 31.7%
Depression 22.5%
Fair or poor health 13.8%
Poor mental health 15.3%
Poor physical health 11.3%
No health insurance 11.9%
Visited doctor (checkup) 68.6%
Visited dentist 62.5%
Cholesterol screening 90.5%
Teeth loss 12.6%
Veterans & disability
Veterans Count %
Civilian veterans 292 9.1%
Disability %
Any disability 13.8%
Under 18 4.5%
18–64 years 7.8%
65 and over 36.7%
Health insurance coverage
Type %
Private insurance 62.4%
Public insurance 45.0%
No insurance 8.5%
Uninsured under 19 0.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 3,648 97.3%
Spanish 5 0.1%
Other Indo-European 5 0.1%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 3,666 97.7%
Born in same state 3,597 95.9%
Born in different state 1,539 41.0%
Foreign born 69 1.8%
Naturalized citizen 85 2.3%
Not a US citizen 85 100.0%
Ancestry
Ancestry Count %
Italian 1,098 29.3%
French 842 22.4%
German 337 9%
English 240 6.4%
Ancestry Count %
Arab 87 2.3%
Dutch 74 2%
Polish 58 1.5%
Norwegian 8 0.2%
Technology access
Metric % of households
Computer access 39.8%
Internet access 88.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 03818
What city is ZIP code 03818 in?
ZIP code 03818 is primarily assigned to Conway, New Hampshire.
What county is ZIP code 03818 in?
ZIP code 03818 falls within Carroll County, New Hampshire.
Does ZIP code 03818 have a large retiree population?
49% of households in ZIP code 03818 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 03818 have a large veteran population?
9% of civilians in ZIP code 03818 are veterans, above the national average of ~7%.
What is the population of ZIP code 03818?
ZIP code 03818 has an estimated population of 3,751 residents, with a density of 44 people per square mile.
What is the median household income in ZIP code 03818?
The median household income in ZIP code 03818 is $69,071, below the national median of ~$75,000.
What timezone is ZIP code 03818 in?
ZIP code 03818 observes the EST timezone.
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