Washington is located in Sullivan County, New Hampshire. Washington has a 2025 population of 1,221 . Washington is currently growing at a rate of 0.66% annually and its population has increased by 2.35% since the most recent census, which recorded a population of 1,193 in 2020.
The average household income in Washington is $112,653 with a poverty rate of 7.25%. The median age in Washington is 55.3 years: 54.6 years for males, and 57.5 years for females. For every 100 females there are 90.7 males.
Data after 2023 is projected based on recent change
The racial composition of Washington includes 97.08% White, and smaller percentages for Two or more races, Black or African American, other race, Native American and multiracial populations.
White (97.08%)
Two or more races (1.33%)
Black or African American (0.97%)
Other race (0.35%)
Native American (0.27%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,098 | 97.08% |
| Two or more races | 15 | 1.33% |
| Black or African American | 11 | 0.97% |
| Other race | 4 | 0.35% |
| Native American | 3 | 0.27% |
Married
Widowed
Divorced
Separated
Never Married
Washington's average per capita income is $54,564. Household income levels show a median of $85,417. The poverty rate stands at 7.25%.
Name | Median | Mean |
|---|---|---|
| Married Families | $121,250 | - |
| Families | $100,375 | $120,911 |
| Households | $85,417 | $112,653 |
| Non Families | $33,929 | $67,523 |
Average Income
Median Household Income
Poverty Rate