Irwin

County:: Lancaster County
County Seat:: No
Area (mi²):: 2.985
State:: South Carolina

Irwin is a CDP located in Lancaster County, South Carolina. Irwin has a 2025 population of 1,984. Irwin is currently growing at a rate of 2.01% annually and its population has increased by 51.68% since the most recent census, which recorded a population of 1,308 in 2020.

The average household income in Irwin is $69,332 with a poverty rate of 35.49%.The median age in Irwin is 39.6 years: 39.2 years for males, and 40.4 years for females.

Demographics

The racial composition of Irwin includes 56.02% White, 35.54% Black or African American, and smaller percentages for Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,009	56.02%
Black or African American	640	35.54%
Two or more races	122	6.77%
Native American	30	1.67%

Irwin Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Irwin's average per capita income is $46,649. Household income levels show a median of $53,795. The poverty rate stands at 35.49%.

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	$96,404	-
Families	$63,259	$73,409
Households	$53,795	$69,332
Non Families	$46,389	$40,784

$46,649

Average Income

$53,795

Median Household Income

35.49%

Poverty Rate