City profile
Irmo, SC
Lexington County · Population 11,813
Irmo is a town in Lexington County, SC with about 11,813 residents and a typical home value near $203,000. It is 12 miles from Columbia, SC, which shapes its climate, healthcare access and amenities.
Climate
Climate type
Humid subtropical
Winter avg
46°F
Summer avg
83°F
Sunny days / yr
221
Home prices & cost of living
Median home price
$203,400
Typical monthly housing
$1,198
Cost of living (100 = U.S.)
88
Taxes
- Property tax
- 0.55%
- State income tax (top)
- 6.2%
- Social Security
- Not taxed
- Pensions
- Partly exempt
- Sales tax (state + avg. local)
- 7.50%
FEMA natural hazard risk
Relatively Moderate · county score 93/100
Top hazards: Ice storm, Lightning, Strong wind
Nearest major airport
78 mi to Charlotte Douglas International Airport (CLT)
Political lean (2024 county vote)
Leans Republican · 33% Democratic / 66% Republican
Community
Population
11,813
Black population
27.8%
County
Lexington County
Detailed crime figures are available for our 201 hand-researched cities.
2025–2026 trends
2026 market trends
- ▸SC is gaining retirees — a sign of strong retiree services and community
- ▸Part of the New Great Migration — a growing Black community in the South
- ▸Climate/cost risks to check: hurricanes (coast)
Highlights
- About 11,813 residents
- Typical home value about $203,000
- 12 miles from Columbia, SC
Trade-offs
- Smaller community with fewer local amenities
- Scores for this place are estimated from Census data and the nearest major city
Figures are estimates from public sources (see How we match). Verify before making decisions.