Rochester

County:: Strafford County
County Seat:: No
Area (mi²):: 45.021
State:: New Hampshire

Rochester is a city located in Strafford County, New Hampshire. Rochester has a 2025 population of 34,187. Rochester is currently growing at a rate of 0.99% annually and its population has increased by 5.14% since the most recent census, which recorded a population of 32,517 in 2020.

The average household income in Rochester is $93,840 with a poverty rate of 8.45%.The median age in Rochester is 43.4 years: 40.9 years for males, and 45.5 years for females.

Demographics

The racial composition of Rochester includes 92.76% White, and smaller percentages for Asian, Black or African American, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	30,488	92.76%
Two or more races	1,295	3.94%
Asian	591	1.8%
Black or African American	270	0.82%
Other race	222	0.68%

Rochester Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rochester's average per capita income is $50,855. Household income levels show a median of $79,388. The poverty rate stands at 8.45%.

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	$116,868	-
Families	$103,796	$115,617
Households	$79,388	$93,840
Non Families	$40,550	$53,461

$50,855

Average Income

$79,388

Median Household Income

8.45%

Poverty Rate