Irmo (/ˈərmoʊ/) is a town in Lexington and Richland counties, South Carolina, United States and a suburb of Columbia.

It is part of the Columbia Metropolitan Statistical Area and is located 12 miles (19 km) northwest of the city center.

[4] Irmo was chartered on Christmas Eve in 1890 in response to the opening of the Columbia, Newberry and Laurens Railroad.

According to the United States Census Bureau, the town has a total area of 6.86 square miles (17.8 km2), all land.

Named for the okra plant, events have included a charity golf tournament, street dance, live entertainment, a midway, cycling and running competitions, arts and crafts exhibits, and a parade.

[9] The Jacob Wingard Dreher House is listed on the National Register of Historic Places.