In order to serve the large number of individual school districts and charter schools in Texas, Texas Education Agency (TEA) is divided into 20 regions, each containing an Educational Service Center, or ESC. These are also sometimes called Regional Service Centers, or RSC. The ESC's serve as a liaison between the districts and TEA headquarters, providing support to the districts such as conducting workshops and technical assistance. The ESC's do not have any regulatory authority to monitor the districts (this is reserved for TEA headquarters).
Below are the districts, the cities in which the ESC office is located, and the counties served (districts which overlap counties are served by the ESC for the county in which the district's administrative office is located):