Since its founding in 2008, ECS has rapidly expanded across the country. ECS has local grants and hubs in a number of states and regions. The curriculum is currently taught in at least 34 states and Puerto Rico, including the 7 largest school districts, as well as some rural locations and reservations. Over 55,000 students participated in ECS courses nationwide in 2018–19, with an additional 6,000 expected in 2019–20.