Sullivan

County:: Cheshire County
County Seat:: No
Area (mi²):: 18.537
State:: New Hampshire

Sullivan is located in Cheshire County, New Hampshire. Sullivan has a 2025 population of 702. Sullivan is currently growing at a rate of 1.45% annually and its population has increased by 6.85% since the most recent census, which recorded a population of 657 in 2020.

The average household income in Sullivan is $108,265 with a poverty rate of 4.15%. The median age in Sullivan is 46.8 years: 46.5 years for males, and 46.9 years for females.

Demographics

The racial composition of Sullivan includes 88.13% White, and smaller percentages for Asian, other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	616	88.13%
Two or more races	56	8.01%
Asian	18	2.58%
Other race	9	1.29%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Sullivan Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sullivan's average per capita income is $49,792. Household income levels show a median of $95,625. The poverty rate stands at 4.15%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$106,442	-
Families	$105,438	$124,787
Households	$95,625	$108,265
Non Families	$43,750	$57,258

$49,792

Average Income

$95,625

Median Household Income

4.15%

Poverty Rate