03231 ZIP Code — East Andover, NH
Merrimack County, New Hampshire
ZIP code 03231 is located in East Andover, New Hampshire, within Merrimack County. It covers approximately 0.29 square miles and serves a population of 110 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.
110
population
0.29
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
03231 ZIP code map
Cities in ZIP code 03231
Below are the cities the US Postal Service accepts for ZIP code 03231. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| East Andover | Acceptable |
Demographics
updated 07/2026
| Population | |
|---|---|
| Total population | 110 |
| Population density | 379 / sq mi |
| State FIPS | 33 |
| County FIPS | 013 |
| Geography | |
|---|---|
| Land area | 0.29 sq mi |
| Water area | 0.33 sq mi |
| Latitude | 43.4783 |
| Longitude | -71.7646 |
| Timezone | Eastern (ET) |
| Area code | 603 |
Total population by age
Gender
Race & ethnicity
Economics
updated 07/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 30.1% | 30.8% | 31.0% |
| $50k – $100k | 40.8% | 32.4% | 31.2% |
| $100k – $200k | 20.4% | 28.6% | 28.1% |
| Over $200k | 8.7% | 8.1% | 9.7% |
Demographics & statistics
110
Population
379
People per sq mi
57.0
Median age
$135,625
Median household income
$55,114
Per capita income
$0
Median home value
$0
Median monthly rent
91.1%
Home ownership
4.5%
Poverty rate
0.0%
Unemployment
83
Housing units
24.5%
Bachelor's or higher
Age distribution
Male
Female
10
25–34
11
16
45–54
18
9
55–59
10
2
65–74
3
9
75–84
10
6
85+
6
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 0 | 0.0% |
| 18 and over | 110 | 100.0% |
| 65 and over | 36 | 32.7% |
| Median age | 57.0 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 110 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 30.1% | 30.8% | 31.0% |
| $50k – $100k | 40.8% | 32.4% | 31.2% |
| $100k – $200k | 20.4% | 28.6% | 28.1% |
| Over $200k | 8.7% | 8.1% | 9.7% |
Under $10k
8.9%
$35k–$50k
8.9%
$75k–$100k
26.8%
$100k–$150k
21.4%
$150k–$200k
33.9%
| Range | % of households |
|---|---|
| Under $10k | 8.9% |
| $35k–$50k | 8.9% |
| $75k–$100k | 26.8% |
| $100k–$150k | 21.4% |
| $150k–$200k | 33.9% |
| Median income | $135,625 |
Housing
Home values
$100k–$150k
37.3%
$200k–$300k
9.8%
$500k–$1M
52.9%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 91.1% |
| Renter occupied | 8.9% |
| Vacant | 36.4% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.06 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 17.0% |
| 1990–1999 | 14.8% |
| 1980–1989 | 0.0% |
| 1970–1979 | 5.7% |
| 1960–1969 | 5.7% |
| 1950–1959 | 0.0% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 56.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 36.4% |
| 3 bedrooms | 50.0% |
| 4 bedrooms | 13.6% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 44.6% |
| 2 vehicles | 21.4% |
| 3 or more | 33.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Propane / LP gas | 35.7% |
| Fuel oil | 55.4% |
| Wood | 8.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 31 | 55.4% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 0 | 0.0% |
| Female householder, no spouse | 25 | 44.6% |
| Households with children under 18 | 0 | 0.0% |
| Households with seniors (65+) | 22 | 39.3% |
| Average household size | 1.96 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 40.4% | 25.9% |
| Married | 59.6% | 56.9% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 8.6% |
| Divorced | 0.0% | 8.6% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
53.6%
Some college, no degree
17.3%
Associate's degree
4.5%
Bachelor's degree
0.0%
Graduate / professional
24.5%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 24.5% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 0 | 0.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Manufacturing
79.7%
Education & healthcare
20.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 0.0% |
| Service | 0.0% |
| Sales & office | 45.9% |
| Natural resources & construction | 28.4% |
| Production & transportation | 25.7% |
Employment type
| Type | % |
|---|---|
| Private sector | 100.0% |
| Government | 0.0% |
| Self-employed | 0.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 20.3% |
| Carpool | 79.7% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 0.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 0.0 |
Poverty
All people
4.5%
Under 18 years
0.0%
18 and over
4.5%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 39.3% |
| Retirement income | 39.3% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 29.1% |
| High blood pressure | 33.4% |
| High cholesterol | 31.2% |
| Diabetes | 9.2% |
| Heart disease | 6.7% |
| Stroke | 3.0% |
| Asthma | 10.7% |
| Arthritis | 30.4% |
| Kidney disease | 2.9% |
| Pulmonary disease | 6.8% |
| Cancer | 8.4% |
| Behavior / access | % |
|---|---|
| Smoking | 14.7% |
| Binge drinking | 16.6% |
| No physical activity | 18.2% |
| Less than 7 hrs sleep | 30.9% |
| Depression | 23.4% |
| Fair or poor health | 12.3% |
| Poor mental health | 13.5% |
| Poor physical health | 10.2% |
| No health insurance | 9.9% |
| Visited doctor (checkup) | 75.9% |
| Visited dentist | 70.3% |
| Cholesterol screening | 92.6% |
| Teeth loss | 12.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 19 | 17.3% |
| Disability | % |
|---|---|
| Any disability | 10.9% |
| Under 18 | 0.0% |
| 18–64 years | 0.0% |
| 65 and over | 33.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 82.7% |
| Public insurance | 32.7% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 110 | 100.0% |
| 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) | 110 | 100.0% |
| Born in same state | 110 | 100.0% |
| Born in different state | 45 | 40.9% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 33 | 30% |
| Ancestry | Count | % |
|---|---|---|
| Italian | 12 | 10.9% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 50.9% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 03231
What city is ZIP code 03231 in?
ZIP code 03231 is primarily assigned to East Andover, New Hampshire.
What county is ZIP code 03231 in?
ZIP code 03231 falls within Merrimack County, New Hampshire.
Does ZIP code 03231 have an older population?
33% of residents in ZIP code 03231 are 65 or older, above the national average of ~17%.
Is ZIP code 03231 mostly owner-occupied?
91% of occupied units in ZIP code 03231 are owner-occupied, well above the national average.
Does ZIP code 03231 have a large veteran population?
17% of civilians in ZIP code 03231 are veterans, above the national average of ~7%.
Does ZIP code 03231 have a large retiree population?
39% of households in ZIP code 03231 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 03231 in?
ZIP code 03231 observes the EST timezone.