The 5 largest ethnic groups in Irmo, SC are White (Non-Hispanic) (61.3%), Black or African American (Non-Hispanic) (29.3%), Two+ (Non-Hispanic) (4.05%), Asian (Non-Hispanic) (2.47%), and Two+ (Hispanic) (1.53%).
None of the households in Irmo, SC reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.5% of the residents in Irmo, SC are U.S. citizens.
Most people in Irmo, SC drove alone to work, and the average commute time was 24.8 minutes. The average car ownership in Irmo, SC was 2 cars per household.