In recent years, ECS has rapidly expanded across the country and to Puerto Rico. Over 40,000 students participated in ECS courses nationwide in 2016-17 with an additional 10,000 expected in 2017-18. ECS is currently in 25 states and Puerto Rico, including the 7 largest school districts, as well as many small rural locations served by teachers who have participated in ECS PD at CSPdWeek.
In the Los Angeles Unified School District, the second largest school district in the country and where ECS got its start, over 14,700 students have enrolled in the course since the 2008-9 school year. In 2016-17, LA ECS students mirrored the school district demographics: students were 83% Latinx, 5% White, 6% African American, 5% Asian, and 1% other, and 44% were female.