Irwin Flag

Irwin

County Seat:
No
Area (mi²):
0.837
State:
Pennsylvania

Irwin is a borough located in Westmoreland County, Pennsylvania. Irwin has a 2025 population of 3,777 . Irwin is currently declining at a rate of -0.55% annually and its population has decreased by -2.63% since the most recent census, which recorded a population of 3,879 in 2020.

The average household income in Irwin is $71,495 with a poverty rate of 16.8%. The median age in Irwin is 38.5 years: 34.5 years for males, and 41.8 years for females. For every 100 females there are 68.9 males.

3.8K
Total Population
4,514
Density (mi²)
-21 -0.55%
Growth

Irwin Population

Irwin Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Irwin includes 91.95% White, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

White (91.95%)

Two or more races (5.33%)

Other race (1.68%)

Black or African American (1.04%)

Race
Population
Percentage (of total)
White3,55191.95%
Two or more races2065.33%
Other race651.68%
Black or African American401.04%

Irwin Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Irwin's average per capita income is $50,629. Household income levels show a median of $60,747. The poverty rate stands at 16.8%.

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$97,719-
Families$78,500$92,246
Households$60,747$71,495
Non Families$53,438$55,429

$50,629

Average Income

$60,747

Median Household Income

16.8%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)