Charter school enrollment is on the rise in many urban areas. In fact, 56% of all public charter schools are located in urban areas, and 10 of our nation's largest school districts now have 20,000 students enrolled in public charter schools. With this growth in the charter movement, there is an increasing need for local infrastructure support through technical services, advocacy, and coordination. This report examines the potential for citywide charter strategies as a key leverage point for increasing charter school quality.