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, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Other 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%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

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