Capitol South is located on the Orange Line (Orange Line), one of Washington DC's operational metro corridors. It sits between Federal Center SW and Eastern Market, making it a convenient stop for the surrounding area.

What makes Capitol South particularly useful is its interchange connection with Silver Line, Blue Line. If you need to switch between lines, this is where you'll do it – and you won't need to exit or purchase a new ticket. The interchange corridor is clearly signposted with color-coded directions.

The area around Capitol South station offers good connectivity to local landmarks. United States Capitol is about a 5-minute walk from the exit.