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Irmo, SC

Town in Lexington County, South Carolina. ZIP codes: 29063.

Population

11,813

Land area

6.8sq mi

People per sq mi

1,730

ZIP codes

1

Irmo and its ZIP codes

Full map

Irmo at a glance

  • Irmo is about 9.8 times as dense as South Carolina as a whole.
  • By population, it ranks 55th among 474 cities and towns in South Carolina.
  • The median household income is $80,489, 16% above the South Carolina median of $69,324.
  • A typical owner-occupied home is valued at $203,400 (21% below South Carolina) and median rent is $1,477 a month.

Local data for Irmo, SC

Counts from official public data

Housing and community stats

Irmo, SC, American Community Survey 2020-2024

Full profile

Median household income

$80,489

Poverty rate

9.2%

Median home value

$203,400

Median rent

$1,477/mo

Homeownership

81.6%

Bachelor's or higher

39.2%

Median age

40.3

Average commute

23.7 min

Largest reported origins and ancestries: German Americans (1,871), Irish Americans (1,308), Italian Americans (512).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Lexington County. PPP loans are for Irmo.

Details

Unemployment rate

3.8%

Aug 2026, -0.4 pts in a year

Average annual pay

$58,208

134,271 jobs, 2025

Income per person

$64,070

BEA, 2024

Federal spending

$2.3B

FY 2026, $7,792 per person

Lexington County economyFederal spending

How people get to work

Irmo, SC, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone74.5%
  • Carpooled7.7%
  • Public transit0.0%
  • Walked1.6%
  • Bicycle0.1%
  • Taxi, ride-hailing, motorcycle or other1.5%
  • Worked from home14.6%

Average one-way commute: 23.7 minutes for people who do not work from home.

Environment and hazard risk

Irmo, SC, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: tornado

Storm events since 1996

1,175

Countywide, mostly thunderstorm wind

Flood insurance policies

1,311

1.1% of homes, county

July high / Jan low

93° / 35°F

45.2 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Irmo, SC, CDC PLACES estimates

All 40 measures

Obesity

33.3%

U.S. 33.3% about the same

Diabetes

11.7%

U.S. 12.1% about the same

Smoking

10.3%

U.S. 12.8% -2.5 pts

Uninsured (18-64)

9.1%

U.S. 11.1% -2.0 pts

ZIP codes in Irmo

1 in or overlapping Irmo. Population shown

·

Cities near Irmo

NameDistanceLand area (sq mi)
Seven OaksCensus-designated place3.9 mi7.7
Lake Murray of RichlandCensus-designated place5.2 mi5.5
St. AndrewsCensus-designated place5.9 mi6.1
LexingtonTown7.6 mi12
Oak GroveCensus-designated place8 mi7.6
West ColumbiaCity9.4 mi9.4
SpringdaleTown9.5 mi2.7
ChapinTown11 mi2.1
Red BankCensus-designated place11 mi12.5
OlympiaCensus-designated place11 mi0.7
CayceCity13 mi16.9
DentsvilleCensus-designated place13 mi6.7
South CongareeTown13 mi3.3
Arcadia LakesTown13 mi0.6
Forest AcresCity13 mi4.6
PeakTown13 mi0.3

Frequently asked questions

What county is Irmo, SC in?
Irmo is in Lexington County, South Carolina.
What ZIP codes are in Irmo, SC?
ZIP codes in or overlapping Irmo include 29063.
What is the population of Irmo, SC?
About 11,813 people live in Irmo, based on American Community Survey 5-year estimates.
What cities are near Irmo?
Nearby places include Seven Oaks (3.9 mi), Lake Murray of Richland (5.2 mi), St. Andrews (5.9 mi), Lexington (7.6 mi), Oak Grove (8 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023