Cooperative Winnebago County Harlem School District 122 Kinnikinnick Community Consolidated School District 131 Prairie Hill Community Consolidated School District 133 Shirland Community Consolidated School District 134 Rockton School District 140 Rockford Public School District 205 Hononegah Community High School District 207 South Beloit Community Unit School District 320, also known as "County of Winnebago School District 320" Pecatonica Community Unit School District 321 Durand Community Unit School District 322 Winnebago Community Unit School District 323 Region 05: North Cook ISC 1 Cook County Community Consolidated School District 15 — based in Palatine Wheeling Community Consolidated School District 21 Prospect Heights School District 23 Arlington Heights School District 25 River Trails School District 26 Northbrook School District 27 Northbrook School District 28 Sunset Ridge School District 29 Northbrook/Glenview School District 30 West Northfield School District 31 Glenview Community Consolidated School District 34 Glencoe School District 35 Winnetka School District 36 Avoca School District 37 Kenilworth School District 38 Wilmette Public Schools District 39 Community Consolidated School District 54 — based in Schaumburg Mount Prospect School District 57 Community Consolidated School District 59 — based in Arlington Heights Community Consolidated School District 62 — based in Des Plaines East Maine School District 63 Park Ridge-Niles School District 64 Evanston/Skokie School District 65 Golf School District 67 Skokie School District 68 Skokie-Morton School District 69 Morton Grove School District 70 Niles Elementary School District 71 Fairview School District 72 East Prairie School District 73 Skokie School District 73½ Lincolnwood School District 74 Evanston Township High School District 202 New Trier Township High School District 203 Maine Township High School District 207 Township High School District 211 — serves Palatine and Schaumburg Townships Township High School District 214 — based in Arlington Heights Niles Township High School District 219 Northfield Township High School District 225 Region 06: West Cook ISC 2 Cook County Rosemont Elementary School District 78 Pennoyer School District 79 Norridge School District 80 Schiller Park School District 81 Mannheim School District 83 Franklin Park School District 84 Rhodes School District 84½ River Grove School District 85½ Union Ridge School District 86 Berkeley School District 87 Bellwood School District 88 Maywood-Melrose Park-Broadview School District 89 River Forest Public Schools District 90 Forest Park School District 91 Lindop School District 92 Westchester Public School District 92½ Hillside School District 93 Komarek School District 94 Brookfield-Lagrange Park School District 95 Riverside School District 96