Irwin township

County:: Westmoreland County
County Seat:: No
Area (mi²):: 30.301
State:: Pennsylvania

Irwin township is located in Westmoreland County, Pennsylvania. Irwin township has a 2025 population of 1,212. Irwin township is currently declining at a rate of -0.57% annually and its population has decreased by -3.04% since the most recent census, which recorded a population of 1,250 in 2020.

The average household income in Irwin township is $88,932 with a poverty rate of 5.44%.The median age in Irwin township is 45.6 years: 45.4 years for males, and 46.6 years for females.

Demographics

The racial composition of Irwin township includes 95.45% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,260	95.45%
Two or more races	57	4.32%
Other race	3	0.23%

Irwin township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Irwin township's average per capita income is $47,436. Household income levels show a median of $69,615. The poverty rate stands at 5.44%.

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	$90,833	-
Families	$80,893	$95,336
Households	$69,615	$88,932
Non Families	$62,083	$72,332

$47,436

Average Income

$69,615

Median Household Income

5.44%

Poverty Rate