Strafford County, NH ZIP Codes
New Hampshire (NH) · 19 ZIP codes · 14 cities
19
ZIP codes
132,416
population (2021)
+7.5%
pop change since 2010
33017
FIPS code
Strafford County ZIP code map
About Strafford County
Strafford County is located in New Hampshire and contains 19 ZIP codes across 14 cities and communities.
The county's population was 132,416 as of 2021,
an increase of
7.5% from 123,143 in 2010.
The timezone is Central Time (observes DST).
The Federal Information Processing System (FIPS) code for Strafford County is 33017.
| Population | |
|---|---|
| 2021 population | 132,416 |
| 2010 population | 123,143 |
| Change | +7.5% |
| County details | |
|---|---|
| State | New Hampshire |
| FIPS code | 33017 |
| Timezone | Central |
| Daylight saving | Yes |
Cities in Strafford County
Barrington
Center Strafford
Dover
Durham
Farmington
Lee
Madbury
Milton
Milton Mills
New Durham
Rochester
Rollinsford
Somersworth
Strafford
ZIP codes for Strafford County, NH (19)
| ZIP code | City | County | Map |
|---|---|---|---|
| 03815 | Center Strafford | Strafford | View map |
| 03820 | Dover | Strafford | View map |
| 03821 | Dover | Strafford | View map |
| 03822 | Dover | Strafford | View map |
| 03823 | Madbury | Strafford | View map |
| 03824 | Durham | Strafford | View map |
| 03825 | Barrington | Strafford | View map |
| 03835 | Farmington | Strafford | View map |
| 03839 | Rochester | Strafford | View map |
| 03851 | Milton | Strafford | View map |
| 03852 | Milton Mills | Strafford | View map |
| 03855 | New Durham | Strafford | View map |
| 03861 | Lee | Strafford | View map |
| 03866 | Rochester | Strafford | View map |
| 03867 | Rochester | Strafford | View map |
| 03868 | Rochester | Strafford | View map |
| 03869 | Rollinsford | Strafford | View map |
| 03878 | Somersworth | Strafford | View map |
| 03884 | Strafford | Strafford | View map |
Demographics & statistics
131,397
Population
38.6
Median age
$88,725
Median household income
$43,288
Per capita income
$312,156
Median home value
$1,239
Median monthly rent
78.9%
Home ownership
8.6%
Poverty rate
3.7%
Unemployment
39,038
Housing units
37.0%
Bachelor's or higher
Age distribution
Male
Female
2,927
Under 5
3,033
2,951
5–9
3,057
3,557
10–14
3,685
5,132
15–19
5,317
6,707
20–24
6,949
8,761
25–34
9,078
7,509
35–44
7,781
7,855
45–54
8,139
4,702
55–59
4,873
4,114
60–64
4,263
6,173
65–74
6,396
2,877
75–84
2,982
1,267
85+
1,312
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 23,630 | 18.7% |
| 18 and over | 107,767 | 81.3% |
| 65 and over | 21,007 | 16.5% |
| Median age | 38.6 years | |
Race & ethnicity
White
87.3%
Two or more races
5%
Asian
2.9%
Hispanic or Latino
2.8%
Black or African American
1.1%
Other race
0.8%
Native Hawaiian / Pacific Islander
0.1%
| Group | Count | % |
|---|---|---|
| White | 118,019 | 87.3% |
| Two or more races | 6,785 | 5% |
| Asian | 3,908 | 2.9% |
| Hispanic or Latino | 3,783 | 2.8% |
| Black or African American | 1,445 | 1.1% |
| Other race | 1,078 | 0.8% |
| Native Hawaiian / Pacific Islander | 98 | 0.1% |
Household income
Under $10k
3.3%
$10k–$15k
3.0%
$15k–$25k
4.2%
$25k–$35k
7.6%
$35k–$50k
8.0%
$50k–$75k
15.6%
$75k–$100k
12.0%
$100k–$150k
22.2%
$150k–$200k
11.9%
$200k+
12.3%
| Range | % of households |
|---|---|
| Under $10k | 3.3% |
| $10k–$15k | 3.0% |
| $15k–$25k | 4.2% |
| $25k–$35k | 7.6% |
| $35k–$50k | 8.0% |
| $50k–$75k | 15.6% |
| $75k–$100k | 12.0% |
| $100k–$150k | 22.2% |
| $150k–$200k | 11.9% |
| $200k+ | 12.3% |
| Median income | $88,725 |
Housing
Home values
Under $50k
4.3%
$50k–$100k
2.6%
$100k–$150k
5.2%
$150k–$200k
7.7%
$200k–$300k
29.7%
$300k–$500k
36.2%
$500k–$1M
12.5%
$1M+
1.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $312,156 |
| Median rent / month | $1,239 |
| Owner occupied | 78.9% |
| Renter occupied | 21.1% |
| Vacant | 10.9% |
| Single-family detached | 67.6% |
| Large apartment buildings | 4.1% |
| Mobile homes | 9.2% |
| Median rooms | 5.8 |
| Avg household size (owned) | 2.69 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.5% |
| 2010–2019 | 6.5% |
| 2000–2009 | 15.5% |
| 1990–1999 | 9.0% |
| 1980–1989 | 20.1% |
| 1970–1979 | 14.3% |
| 1960–1969 | 7.7% |
| 1950–1959 | 6.2% |
| 1940–1949 | 2.7% |
| 1939 or earlier | 17.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.1% |
| 1 bedroom | 8.5% |
| 2 bedrooms | 26.0% |
| 3 bedrooms | 41.6% |
| 4 bedrooms | 18.0% |
| 5+ bedrooms | 3.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.0% |
| 1 vehicle | 27.2% |
| 2 vehicles | 40.1% |
| 3 or more | 28.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 9.2% |
| Electricity | 7.3% |
| Propane / LP gas | 17.9% |
| Fuel oil | 55.1% |
| Wood | 7.3% |
| Solar | 0.4% |
| No fuel used | 0.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 25,322 | 57.1% |
| Cohabiting couple | 4,639 | 8.0% |
| Male householder, no spouse | 8,960 | 15.3% |
| Female householder, no spouse | 12,164 | 19.6% |
| Households with children under 18 | 13,876 | 29.1% |
| Households with seniors (65+) | 15,105 | 31.6% |
| Average household size | 2.60 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 34.9% | 28.5% |
| Married | 52.9% | 51.1% |
| Separated | 0.8% | 1.8% |
| Widowed | 1.7% | 6.8% |
| Divorced | 9.7% | 11.9% |
Education
Less than 9th grade
2.0%
Some HS, no diploma
3.7%
HS graduate
29.0%
Some college, no degree
17.2%
Associate's degree
11.1%
Bachelor's degree
23.2%
Graduate / professional
13.9%
| Metric | % |
|---|---|
| HS diploma or higher | 94.3% |
| Bachelor's or higher | 37.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 1,517 | 4.9% |
| Kindergarten | 1,309 | 4.7% |
| Elementary school | 10,567 | 39.0% |
| High school | 5,160 | 25.1% |
| College / grad school | 15,012 | 26.3% |
Employment
Industry of employment
Education & healthcare
22.6%
Manufacturing
15.1%
Retail trade
12.1%
Professional & management
9.4%
Arts, food & hospitality
7.7%
Finance & real estate
7.4%
Construction
7.3%
Public administration
4.8%
Transportation & utilities
4.7%
Other services
4.7%
Wholesale trade
1.7%
Information
1.4%
Agriculture & mining
1.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 41.9% |
| Service | 13.9% |
| Sales & office | 20.9% |
| Natural resources & construction | 10.2% |
| Production & transportation | 13.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 78.1% |
| Government | 16.1% |
| Self-employed | 5.7% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 76.7% |
| Carpool | 7.4% |
| Public transit | 0.8% |
| Walk | 2.1% |
| Other means | 1.2% |
| Avg commute (minutes) | 29.3 |
Poverty
All people
8.6%
Under 18 years
8.2%
18 and over
8.8%
Married-couple families
2.3%
Female-led households
19.4%
Income support
| Source | % of households |
|---|---|
| Social Security | 32.7% |
| Retirement income | 27.5% |
| Supplemental Security | 4.6% |
| Cash public assistance | 2.4% |
| Food stamps / SNAP | 6.5% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 28.6% |
| High cholesterol | 31.0% |
| Heart disease | 5.3% |
| Stroke | 2.4% |
| Asthma | 10.7% |
| Arthritis | 22.5% |
| Kidney disease | 2.3% |
| Pulmonary disease | 6.0% |
| Cancer | 6.2% |
| Behavior / access | % |
|---|---|
| Binge drinking | 18.9% |
| No physical activity | 19.9% |
| Less than 7 hrs sleep | 30.6% |
| Fair or poor health | 11.7% |
| Poor mental health | 16.3% |
| Poor physical health | 9.9% |
| No health insurance | 10.6% |
| Visited doctor (checkup) | 71.6% |
| Visited dentist | 67.5% |
| Cholesterol screening | 89.6% |
| Teeth loss | 11.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 8,399 | 9.4% |
| Disability | % |
|---|---|
| Any disability | 13.3% |
| Under 18 | 7.1% |
| 18–64 years | 11.0% |
| 65 and over | 31.7% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 76.1% |
| Public insurance | 31.8% |
| Uninsured under 19 | 2.9% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 125,437 | 95.2% |
| Spanish | 1,686 | 1.1% |
| Other Indo-European | 331 | 0.2% |
| Asian & Pacific Islander | 504 | 0.3% |
| Other languages | 727 | 0.5% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 126,056 | 96.9% |
| Born in same state | 124,009 | 95.5% |
| Born in different state | 60,658 | 48.4% |
| Foreign born | 2,047 | 1.3% |
| Naturalized citizen | 5,341 | 3.2% |
| Not a US citizen | 3,010 | 49.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 27,648 | 21% |
| French | 25,832 | 19.7% |
| German | 10,683 | 8.1% |
| Arab | 5,471 | 4.2% |
| Polish | 1,225 | 0.9% |
| Ancestry | Count | % |
|---|---|---|
| English | 1,066 | 0.8% |
| Norwegian | 534 | 0.4% |
| Dutch | 510 | 0.4% |
| Irish | 409 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 37.6% |
| Internet access | 95.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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