Irwin, SC demographics:
population, income, and more

Total population
1,919
6.5% year-over-year change
Median household income
$55,885/yr
3.9% year-over-year change
Housing units
653
-7.8% year-over-year change

Irwin population

How many people live in Irwin

Irwin is home to 1,919 residents, according to the most recent Census data. Gender-wise, 46.9% of Irwin locals are male, and 53.1% are female.

Total population
1,919
6.5% year-over-year change
Gender ratio
Male
46.9%
900
Female
53.1%
1,019
Value Percent YoY change
Male 900 46.9% 12.1%
Female 1,019 53.1% 2.1%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Irwin is 32, with the population distributed as follows: about 13.7% are children under 15, then 21.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 29.6% of the population, while another 21.6% fall into the 45 to 64 bracket. Finally, around 13.7% are 65 or older.

Median age
32
Age breakdown
Under 15
13.7%
15 to 24
21.4%
25 to 44
29.6%
45 to 64
21.6%
Over 65
13.7%
Value Percent YoY change
Under 15 263 13.7% -13.8%
15 to 24 411 21.4% 37.0%
25 to 44 567 29.6% 31.2%
45 to 64 415 21.6% -18.5%
Over 65 263 13.7% 3.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

At the same time, 0.9% of residents are non-citizens. There’s also a share of 4.6% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.1%
Non-U.S.-born citizens
0%
Non-citizens
0.9%
Value Percent YoY change
U.S.-born citizens 1,901 99.1% 6.3%
Non-citizens 18 0.9% 50.0%
Racial breakdown
White
49.8%
Black or African American
45.2%
American Indian and Alaska Native
0.4%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.6%
Other
0%
Value Percent
White 955 49.8%
Black or African American 867 45.2%
American Indian and Alaska Native 8 0.4%
Two or more races 89 4.6%

Households in Irwin

A peek inside Irwin households

Irwin has 653 households, with an average of 3 members in each. Of these, 66.6% are families, while the remaining 33.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
653
-2.7% year-over-year change
Average people per household
3
Non-family households
218
Family households
435
Value Percent YoY change
Non-family households 218 33.4% 6.9%
Family households 435 66.6% -6.8%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Irwin

The housing landscape of Irwin

Irwin's housing consists of 653 units, with 95.2% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 4.8% of the housing landscape.

Housing units
653
-7.8% year-over-year change
Housing types
Value Percent
1 unit, detached 622 95.2%
Mobile home 31 4.8%
Homes built since 2020
20
% year-over-year change

The age of buildings in Irwin

In Irwin, the median construction year is 1964. About 3.2% of homes were built before the 1940s, with another 20.7% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 21 3.2% -4.5%
Built between 1940 and 1949 135 20.7% -2.2%
Built between 1950 and 1959 66 10.1% -48.4%
Built between 1960 and 1969 246 37.7% 19.4%
Built between 1970 and 1979 63 9.6% 0.0%
Built between 1980 and 1989 25 3.8% -61.5%
Built between 1990 and 1999 36 5.5% 20.0%
Built between 2000 and 2009 41 6.3% -26.8%
Built in 2020 or later 20 3.1% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Irwin occupancy rates

Out of the 653 occupied housing units in Irwin, 95.7% are owner-occupied, while 4.3% are lived in by tenants.

Occupied housing units
653
-2.7% year-over-year change
Occupancy breakdown
Renter occupied
28
Owner occupied
625
Value Percent YoY
change
Renter occupied 28 4.3% -76.7%
Owner occupied 625 95.7% 13.4%
Unoccupied housing units
0.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Irwin housing costs

Housing costs in Irwin come to a median of $799 per month, while tenants specifically pay a median gross rent of $818.

Median housing costs per month
$799/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Irwin
$818/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Irwin

Irwin education at a glance

About 52.1% of the population in Irwin went to high school, while 26.2% pursued college studies. Another 8.4% earned an associate degree and 8.6% hold a bachelor’s. Meanwhile, 1.2% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 56 3.5% 21.7%
High school diploma 827 52.1% 1.9%
College diploma 416 26.2% 8.9%
Associate degree 133 8.4% -15.8%
Bachelor's degree 136 8.6% 750.0%
Graduate degree 19 1.2% 0.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Irwin

How much people earn in Irwin

The average annual household income in Irwin was $78,459 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +13.2% change from the previous year. At the same time, the median income stood at $55,885, reflecting a +3.9% shift over the same period.

Average household income in Irwin
$78,459/year
13.2% year-over-year change
Median household income in Irwin
$55,885/year
3.9% year-over-year change

Irwin income by age

In Irwin, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $181,188. Those with someone between 45 and 64 in charge, often well established professionally, earn $49,275 overall. Overall, 73.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $181,188 89.1%
45 - 64 $49,275 7.4%
Over 65 $41,250 -32.7%
Above poverty level
1,382
Below poverty level
488
Value Percent YoY
change
Above poverty level 1,382 73.9% 20.7%
Below poverty level 488 26.1% -22.5%

Employment in Irwin

Workforce and job types in Irwin

The job market in Irwin is powered by 1,062 working residents, spread across a range of industries and roles. 77% of the working population are employed in professional or administrative positions, while 23% are in hands-on or service-based jobs. Also, 2.4% run their own businesses, 75.8% are employed by private companies, and 13.2% work in the public sector.

Workforce demographics

Working population
1,062
26.3% year-over-year change
White collar
818
Blue collar
244
Value Percent YoY change
White collar 818 77% 21.4%
Blue collar 244 23% 46.1%
Employer type
Self employees
2.4%
Private companies
75.8%
Governmental workers
13.2%
Not for profit companies
8.7%
Value Percent YoY change
Self employees 25 2.4% -61.5%
Private companies 805 75.8% 51.9%
Governmental workers 140 13.2% 17.6%
Not for profit companies 92 8.7% -27.6%
Unemployment rate
10.7%
-25.7% year-over-year change

Available workforce

The unemployment rate in Irwin stands at 10.7%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Irwin

How people get around in Irwin

Means of transportation
Value Percent YoY change
Car 971 93.4% 24.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

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FAQs about Irwin demographics 

What is the total population of Irwin?

Irwin has a total population of 1,919 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +6.5% compared to a year ago.

What is the gender ratio in Irwin?

The gender ratio in Irwin is as follows:
  • 46.9% males (900 residents)
  • 53.1% females (1,019 residents)

What is the median age in Irwin?

The median age in Irwin is 32.

What is the age distribution of the population in Irwin?

The age distribution in Irwin is as follows:
  • Under 15: 13.7% (263 residents)
  • Ages 15-24: 21.4% (411 residents)
  • Ages 25-44: 29.6% (567 residents)
  • Ages 45-64: 21.6% (415 residents)
  • Over 65: 13.7% (263 residents)

What is the racial and ethnic makeup of Irwin?

The racial and ethnic makeup of Irwin is as follows:
  • White: 49.8% (955 residents)
  • Black or African American: 45.2% (867 residents)
  • American Indian and Alaska Native: 0.4% (8 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 4.6% (89 residents)
  • Other: 0% (0 residents)

What percentage of the population in Irwin are U.S.-born citizens?

U.S.-born citizens represent 99.1% of the population in Irwin.

How many housing units are there in Irwin?

There are 653 housing units in Irwin, reflecting a -7.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Irwin and what is the average household size?

Irwin has a total of 653 households, with an average of 3 people in each.

What is the median household income in Irwin?

Irwin has a median household income of $55,885, representing a +3.9% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Irwin?

The employment rate is 89.3% in Irwin, with a workforce of 1,062 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 77% (818 residents)
  • Blue-collar workers: 23% (244 residents)

Places of employment:
  • Self-employed: 2.4% (25 residents)
  • Private companies: 75.8% (805 residents)
  • Governmental workers: 13.2% (140 residents)
  • Not-for-profit companies: 8.7% (92 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025