Merrimac

County:: Essex County
County Seat:: No
Area (mi²):: 8.499
State:: Massachusetts

Merrimac is located in Essex County, Massachusetts. Merrimac has a 2025 population of 6,762. Merrimac is currently growing at a rate of 0.33% annually and its population has increased by 0.68% since the most recent census, which recorded a population of 6,716 in 2020.

The average household income in Merrimac is $124,770 with a poverty rate of 8.28%.The median age in Merrimac is 48.6 years: 47.2 years for males, and 52 years for females.

Demographics

The racial composition of Merrimac includes 94.95% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	6,368	94.95%
Two or more races	338	5.04%
Other race	1	0.01%

Merrimac Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Merrimac's average per capita income is $65,656. Household income levels show a median of $116,477. The poverty rate stands at 8.28%.

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	$167,750	-
Families	$140,167	$138,194
Households	$116,477	$124,770
Non Families	$80,616	$77,206

$65,656

Average Income

$116,477

Median Household Income

8.28%

Poverty Rate