Strafford County, New Hampshire Demographics 2026
Strafford County, New Hampshire has a population of 132,575, the 4th most populous county in New Hampshire. The median household income is $88,570 and the median home value is $362,800. The poverty rate is 8.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Strafford County Quick Facts
How Strafford County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 131,743 | 132,575 | +0.6% |
| Median household income | $86,564 | $88,570 | +2.3% |
| Median home value | $332,400 | $362,800 | +9.1% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 24 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Strafford County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Dover | 33,364 | $94,829 | 8.3% | $436,700 |
| Rochester | 33,144 | $80,836 | 8.3% | $279,100 |
| Somersworth | 12,111 | $74,504 | 11.2% | $318,400 |
| Durham | 10,681 | $112,070 | 12.4% | $498,000 |
| Farmington | 3,924 | $55,029 | 14.1% | $229,600 |
| Milton | 356 | $48,125 | 9.3% | $240,400 |
| Milton Mills | 72 | $250,000+ | 11.1% | $366,000 |
Explore New Hampshire Rankings
Population Overview
Strafford County is located in New Hampshire with a total population of 132,575. It is the 4th most populous county out of 10 in New Hampshire. The county encompasses 7 Census-designated places.
Age Demographics
The median age in Strafford County is 38.2 years. This is 12% lower than the state median of 43.3 years.
Economy, Income & Housing
The median household income in Strafford County is $88,570. This is 11% lower than the state median of $99,031. It is also 10% higher than the national median of $80,734. The poverty rate stands at 8.7%. This is 19% higher than the state poverty rate of 7.2%. The unemployment rate is 3.5%. This is 6% higher than the state rate of 3.4%. The median home value is $362,800. Housing costs are 10% lower than the state median of $402,500. The home-value-to-income ratio is 4.1x. 67.1% of occupied housing units are owner-occupied. This homeownership rate is 8% lower than the state average of 72.8%.
Race & Ethnicity
Strafford County has a predominantly White (non-Hispanic) population, comprising 87.6% of all residents. Hispanic or Latino residents account for 3.2%.
Education
39.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 3% lower than the state rate of 40.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.7%.
Data Sources & Methodology
All figures for Strafford County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against New Hampshire and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Strafford County, New Hampshire?
Strafford County has a population of 132,575, making it the 4th most populous county in New Hampshire.
What is the median income in Strafford County?
The median household income in Strafford County is $88,570 with a poverty rate of 8.7%.
How many cities are in Strafford County, New Hampshire?
Strafford County contains 7 Census-designated places.