Mars

County:: Butler County
County Seat:: No
Area (mi²):: 0.47
State:: Pennsylvania

Mars is a borough located in Butler County, Pennsylvania. Mars has a 2025 population of 1,400. Mars is currently declining at a rate of -0.85% annually and its population has decreased by -4.24% since the most recent census, which recorded a population of 1,462 in 2020.

The average household income in Mars is $72,163 with a poverty rate of 12.33%. The median age in Mars is 53.9 years: 51.6 years for males, and 59.2 years for females.

Demographics

The racial composition of Mars includes 91.31% White, and smaller percentages for other race, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,146	91.31%
Two or more races	100	7.97%
Other race	7	0.56%
Black or African American	2	0.16%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Mars Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mars' average per capita income is $49,803. Household income levels show a median of $58,000. The poverty rate stands at 12.33%.

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	$119,688	-
Families	$89,464	$114,036
Households	$58,000	$72,163
Non Families	$38,542	$40,957

$49,803

Average Income

$58,000

Median Household Income

12.33%

Poverty Rate