Strafford County's 2026 population is estimated at 135,390, reflecting a 0.44% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Strafford County is the 4th largest county in New Hampshire. The 2010 population was 123,203 and has grown 9.89% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.2 years
Female: 39.4 years
Male: 37.2 years
There are 109,176 adults, (22,652 of whom are seniors) in Strafford County.
Female: 67,056 (50.6%)
Male: 65,519 (49.4%)
The racial composition of Strafford County includes 88.22% White, and smaller percentages for Asian, Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 116,964 | 88.22% |
| Two or more races | 8,919 | 6.73% |
| Asian | 3,618 | 2.73% |
| Black or African American | 1,534 | 1.16% |
| Other race | 1,481 | 1.12% |
| Native American | 34 | 0.03% |
| Native Hawaiian or Pacific Islander | 25 | 0.02% |
Strafford County 's average per capita income is $59,121. Household income levels show a median of $88,570. The poverty rate stands at 8.66%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $135,507 | $155,254 |
| Families | $121,495 | $139,874 |
| Households | $88,570 | $114,189 |
| Non Families | $50,602 | $69,323 |
Average Income
Median Household Income
Poverty Rate