Ind. Admin. Code tit. 511, r. 4-4-2
Authority: IC 20-19-2-8
Affected: IC 20-20-1-2; IC 20-20-1-3; IC 20-20-1-5
Sec. 2. Establishment of Membership Units. (A) The following geographical areas are designated (by county) as membership units and are eligible to organize and operate an educational service center.
| ESC 1 | ESC 2 | ESC 3 | ESC 4 | ESC 5 | ESC 6 | ESC 7 | ESC 8 | ESC 9 |
| Crawford | Clark | Brown | Bartholomew | Benton | Jasper | Elkhart | Adams | Marion |
| Daviess | Dearborn | Clay | Decatur | Boone | Lake | Fulton | Allen | |
| DuBois | Floyd | Greene | Delaware | Carroll | LaPorte | Kosciusko | Blackford | |
| Gibson | Harrison | Hendricks | Fayette | Cass | Newton | Marshall | DeKalb | |
| Knox | Jackson | Monroe | Franklin | Clinton | Porter | Pulaski | Grant | |
| Lawrence | Jefferson | Morgan | Hancock | Fountain | St. Joseph | Huntington | ||
| Martin | Jennings | Owen | Henry | Hamilton | Starke | Jay | ||
| Orange | Ohio | Parke | Johnson | Howard | LaGrange | |||
| Perry | Ripley | Putnam | Madison | Miami | Noble | |||
| Pike | Scott | Sullivan | Randolph | Montgomery | Steuben | |||
| Posey | Switzerland | Vermillion | Rush | Tippecanoe | Wabash | |||
| Spencer | Washington | Vigo | Shelby | Tipton | Wells | |||
| Vanderburg | Union | Warren | Whitley | |||||
| Warrick | Wayne | White | ||||||
| *100,000 | *82,000 | *99,000 | *170,000 | *125,000 | *175,000 | *110,000 | *145,000 | *157,000 |
| *Approximate enrollment, 1976. |
(B) The designated units, should they become operational, shall be termed Educational Service Centers, hereafter designated as ESC. 
(Indiana State Board of Education; Rule SC-1,Sec 2; filed Jul 24, 1978, 9:20 am: 1 IR 569; readopted filed Oct 12, 2001, 12:55 p.m.: 25 IR 937; readopted filed Nov 20, 2007, 11:36 a.m.: 20071219-IR-511070386RFA; readopted filed Dec 2, 2013, 3:26 p.m.: 20140101-IR-511130419RFA; readopted filed Dec 1, 2020, 1:48 p.m.: 20201230-IR-511200548RFA) NOTE: Transferred from the Commission on General Education ( 510 IAC 14-1-2) to the Indiana State Board of Education ( 511 IAC 4-4-2) by P.L.20-1984, SECTION 206, effective July 1, 1984.