These districts are organized by regions set by the Illinois State Board of Education and not by the actual county boundaries; school districts can cross county boundaries, and school districts with administrative headquarters and/or schools only in certain counties can include territory in one or more other counties that do not have schools operated by that district.
Bradford Community Unit School District 1 — deactivated into tuition for grades 9-12 to Henry-Senachwine Community School District 5, Stark County Community Unit School District 100 and Bureau Valley Community Unit School District 340 in 2001[7]
Crescent Iroquois Community Unit School District 249 — deactivated into tuition for grades 9-12 to Cissna Park Community Unit School District 6, Iroquois County Community Unit School District 9 and Iroquois West Community Unit School District 10 in 2009 and for grades 6-8 to Cissna Park Community Unit School District 6, Iroquois County Community Unit School District 9 and Iroquois West Community Unit School District 10 in 2023[3][1]
Lostant Community Unit School District 425 — deactivated into tuition for grades 9-12 to Fieldcrest Community Unit School District 6, Streator Township High School District 40, LaSalle-Pery Township High School District 120 and Putnam County Community Unit School District 535 in 1993[9]
Region 02: Alexander/Johnson/Massac/Pulaski/Union ROE — became part of Region 21: Franklin/Williamson ROE for Johnson and Massac counties and Region 30: Jackson/Perry ROE for Alexander, Pulaski and Union counties in 2015, which were renamed Region 21: Franklin/Johnson/Massac/Williamson ROE and Region 30: Alexander/Jackson/Perry/Pulaski/Union ROE, respectively
Region 10: Christian/Montgomery ROE — became part of Region 03: Bond/Effingham/Fayette ROE in 2015, which was renamed Region 03: Bond/Christian/Effingham/Fayette/Montgomery ROE
Region 14: Suburban Cook ROE — split into Region 05: North Cook ISC 1, Region 06: West Cook ISC 2 and Region 07: South Cook ISC 4 in 2010
Region 22: Fulton/Schuyler ROE — became part of Region 26: Hancock/McDonough ROE in 2015, which was renamed Region 26: Fulton/Hancock/McDonough/Schulery ROE
Region 25: Hamilton/Jefferson ROE — became part of Region 13: Clinton/Marion/Washington ROE for Jefferson County and Region 20: Edwards/Gallatin/Hardin/Pope/Saline/Wabash/Wayne/White ROE for Hamilton County in 2015, which were renamed Region 13: Clinton/Jefferson/Marion/Washington ROE and Region 20: Edwards/Gallatin/Hamilton/Hardin/Pope/Saline/Wabash/Wayne/White ROE, respectively
Region 27: Henderson/Mercer/Warren ROE — became part of Region 33: Knox ROE in 2015, which was renamed Region 33: Henderson/Knox/Mercer/Warren ROE
Region 38: Logan/Mason/Menard ROE — became part of Region 17: Dewitt/Livingston/McLean ROE for Logan County, Region 51: Sangamon ROE for Menard County and Region 53: Tazewell ROE for Mason County in 2015, which were renamed Region 17: Dewitt/Livingston/Logan/McLean ROE, Region 51: Menard/Sangamon ROE and Region 53: Mason/Tazewell ROE, respectively
Region 43: Marshall/Putnam/Woodford ROE — became part of Region 35: LaSalle ROE for Marshall and Putnam Counties and Region 53: Tazewell ROE for Woodford County in 2015, which were renamed Region 35: LaSalle/Marshall/Putnam ROE and Region 53: Tazewell/Woodford ROE, respectively
Region 46: Brown/Cass/Morgan/Scott ROE — became part of Region 01: Adams/Pike ROE in 2015, which was renamed Region 01: Adams/PikeBrown/Cass/Morgan/Scott ROE
Region 55: Whiteside ROE — became part of Region 47: Lee/Ogle ROE in 2015, which was renamed Region 47: Lee/Ogle/Whiteside ROE
Cherry School District 92 — deactivated into tuition to Dimmick Community Consolidated School District 175 in 2014[17][18] and consolidated with that district to form a "new" Dimmick Community Consolidated School District 175 in 2017[8]
Wyanet Elementary School District 126 — consolidated with Walnut Elementary School District 285, Manlius Unit School School District 305, Western Unit School District 306, Walnut High School District 508 and Wyanet High School District 510 to form Bureau Valley Community Unit School District 340 in 1995[19]
Walnut Elementary School District 285 — consolidated with Wyanet Elementary School District 126, Manlius Unit School School District 305, Western Unit School District 306, Walnut High School District 508 and Wyanet High School District 510 to from Bureau Valley Community Unit School District 340 in 1995[19]
Manlius Unit School School District 305 — consolidated with Wyanet Elementary School District 126, Walnut Elementary School District 285, Western Unit School District 306, Walnut High School District 508 and Wyanet High School District 510 to from Bureau Valley Community Unit School District 340 in 1995[19]
Western Unit School District 306 — consolidated with Wyanet Elementary School District 126, Walnut Elementary School District 285, Manlius Unit School School District 305, Walnut High School District 508 and Wyanet High School District 510 to from Bureau Valley Community Unit School District 340 in 1995[19]
Neponset Community Consolidated District 307 — deactivated into tuition for grades 9-12 to Bradford Community Unit School District 1 (until 2001), Bureau Valley Community Unit School District 340, Annawan Community Unit School District 226, Kewanee Community Unit School District 229 and Wethersfield Community Unit School District 230 in 1999[21] and annexed into Kewanee Community Unit School District 229 in 2011[22]
Walnut High School District 508 — consolidated with Wyanet Elementary School District 126, Walnut Elementary School District 285, Manlius Unit School School District 305, Western Unit School District 306 and Wyanet High School District 510 to from Bureau Valley Community Unit School District 340 in 1995[19]
Wyanet High School District 510 — consolidated with Wyanet Elementary School District 126, Walnut Elementary School District 285, Manlius Unit School School District 305, Western Unit School District 306 and Walnut High School District 508 to from Bureau Valley Community Unit School District 340 in 1995[19]
Brussels Community High School District 37 — consolidated with Brussels-Richwood Community Consolidated School District 41 to form Brussels Community Unit School District 42 in 1988[24]
Savanna Community Unit School District 300 — consolidated with Thomson Community Unit School District 301 and Mount Carroll Community Unit School District 304 to form West Carroll Community Unit School District 314 in 2005[10]
Thomson Community Unit School District 301 — consolidated with Savanna Community Unit School District 300 and Mount Carroll Community Unit School District 304 to form West Carroll Community Unit School District 314 in 2005[10]
Mount Carroll Community Unit School District 304 — consolidated with Savanna Community Unit School District 300 and Thomson Community Unit School District 301 to form West Carroll Community Unit School District 314 in 2005[10]
A.B.L. Community Unit School District 6 (Allerton-Broadlands-Longview) — consolidated with Homer Community Consolidated School District 208 to form Heritage Community Unit School District 8 in 1989[16]
Penfield Community Consolidated School District 224 — annexed into Armstrong Ellis Community School District 61, Gifford Community Consolidated School District 188 and Prairieview Community Consolidated District 192 in 1991[26]
Kincaid School District 182 — consolidated with Tovey School District 183 and South Fork School District 310 to form South Fork School District 14 in 1984[23]
Tovey School District 183 — consolidated with Kincaid School District 182 and South Fork School District 310 to form South Fork School District 14 in 1984[23]
South Fork School District 310 — consolidated with Kincaid School District 182 and Tovey School District 183 to from South Fork School District 14 in 1984[23]
Casey Community Unit School District C-1 — consolidated with Westfield School District 105 and Westfield Township High School District 201 to form Casey-Westfield Community Unit School District C-4 in 1985[23]
Westfield School District 105 — consolidated with Casey Community Unit School District C-1 and Westfield Township High School District 201 to form Casey-Westfield Community Unit School District C-4 in 1985[23]
Westfield Township High School District 201 — consolidated with Casey Community Unit School District C-1 and Westfield School District 105 to form Casey-Westfield Community Unit School District C-4 in 1985[23]
Farmer City/Mansfield Community Unit School District 17 — consolidated with Bellflower Community Consolidated School District 88 and Bellflower Township High School District 311 to form Blue Ridge Community Unit School District 18 in 1985[23]
Bromberek School District 65 — consolidated with Lemont Community Consolidated School District 113 to form Lemont-Bromberek Combined School District 113A in 1990[16]
Paxton Community Unit School District 2 — consolidated with Buckley-Loda Community Unit School District 8 to form Paxton-Buckley-Loda Community Unit School District 10 in 1990[16]
Ford Central Community Unit School District 8 — annexed into Tri-Point Community Unit School District 6J, Prairie Central Community Unit School District 8, Iroquois West Community Unit School District 10 and Paxton-Buckley-Loda Community Unit School District 10 in 1992[27]
Christopher School District 34 — consolidated with Christopher Community High School District 38 to form Christopher Unit School District 99 in 1999[21]
Thompsonville School District 62 — consolidated with Thompsonville Community High School District 112 to form Thompsonville Community Unit School District 174 in 2007[13]
Saint David School District 87 — consolidated with Lewistown School District 141, Prichard Clark Community Elementary School District 340 and Lewistown Community High School District 341 to form Lewistown Community Unit School District 97 in 1997[19]
Lewistown School District 141 — consolidated with Saint David School District 87, Prichard Clark Community Elementary School District 340 and Lewistown Community High School District 341 to form Lewistown Community Unit School District 97 in 1997[19]
Avon Community Unit School District 176 — consolidated with Abingdon Community Unit School District 217 to form Abingdon-Avon Community Unit School District 276 in 2013[20]
Prichard Clark Community Elementary School District 340 — consolidated with Saint David School District 87, Lewistown School District 141 and Lewistown Community High School District 341 to form Lewistown Community Unit School District 97 in 1997[19]
Lewistown Community High School District 341 — consolidated with Saint David School District 87, Lewistown School District 141 and Prichard Clark Community Elementary School District 340 to form Lewistown Community Unit School District 97 in 1997[19]
North Gallatin Community Unit School District 1 — consolidated with Southeast Gallatin Community Unit School District 2 and Equality Community Unit School District 4 to form Gallatin Community Unit School District 7 in 1987[25]
Southeast Gallatin Community Unit School District 2 — consolidated with North Gallatin Community Unit School District 1 and Equality Community Unit School District 4 to form Gallatin Community Unit School District 7 in 1987[25]
Equality Community Unit School District 4 — consolidated with North Gallatin Community Unit School District 1 and Southeast Gallatin Community Unit School District 2 to form Gallatin Community Unit School District 7 in 1987[25]
Dallas Community Unit School District 336 — deactivated into tuition for grades 9-12 to Nauvoo-Colusa Community School District 325 in 2001[7] and converted into Dallas Elementary School District 327 and Illini West High School District 307 in 2007[3]
Onarga Community Unit School District 1 — consolidated with Gilman-Danforth Community Unit School District 2 to form Iroquois West Community Unit School District 10 in 1983[23]
Sheldon Community Unit School District 5 — annexed (dissolved) into Milford Township High School District 233 and Milford Community Consolidated School District 280 in 2003[10]
Wellington Community Unit School District 7 — annexed into Hoopeston Community Unit School District 11, Milford Township High School District 233 and Milford Community Consolidated School District 280 in 1987[25]
Crescent-Iroquois High School District 252 — consolidated with Crescent City Community Consolidated School District 275 to form Crescent Iroquois Community Unit School District 249 in 2005[13]
Hanover Community School District 212 — consolidated with Elizabeth Community School District 208 to form River Ridge Community Unit School District 210 in 1985[23]
Highland Park School District 107 — consolidated with Highland Park School District 108 and Highwood-Highland Park School District 111 to form North Shore School District 112 in 1993[27]
Highland Park School District 108 — consolidated with Highland Park School District 107 and Highwood-Highland Park School District 111 to form North Shore School District 112 in 1993[27]
Highwood-Highland Park School District 111 — consolidated with Highland Park School District 107 and Highland Park School District 108 to form North Shore School District 112 in 1993[27]
Otter Creek-Hyatt School District 56 — annexed into Allen Township Community Consolidated School District 65 in 2003, which was renamed Allen-Otter Creek Community Consolidated School District 65[10]
Nelson Public School District 8 — consolidated with East Coloma School District 12 to form East Coloma-Nelson Consolidated Elementary School District 20 in 2013[20]
Chatsworth Community Unit School District 1 — consolidated with Forrest Strawn Wing Community Unit School District 2 and Fairbury-Cropsey Community Unit School District 3 to form Prairie Central Community Unit School District 8 in 1985[23]
Forrest Strawn Wing Community Unit School District 2 — consolidated with Chatsworth Community Unit School District 1 and Fairbury-Cropsey Community Unit School District 3 to form Prairie Central Community Unit School District 8 in 1985[23]
Fairbury-Cropsey Community Unit School District 3 — consolidated with Chatsworth Community Unit School District 1 and Forrest Strawn Wing Community Unit School District 2 to form Prairie Central Community Unit School District 8 in 1985[23]
Cornell Community High School District 70 — deactivated into tuition to Flanagan Community Unit School District 4 in 1987[25] and hybrid formed with that district into Flanagan-Cornell Unit 74 in 2008[3]
Sunbury Community Consolidated School District 431 — annexed into Allen Township Community Consolidated School District 65, Dwight Community Consolidated School District 232, Cornell Community Consolidated School District 426 and Odell Community Consolidated School District 435 in 1991[26]
Macon Community Unit School District 5 — consolidated with Blue Mound-Boody Community Unit School District 10 to form Meridian Community Unit School District 15 in 1994[9]
Wenona Community Unit School District 1 — consolidated with Toluca Community Unit School District 2 and Minonk-Dana-Rutland Community Unit School District 108 to from Fieldcrest Community Unit School District 6 in 1992[26]
Toluca Community Unit School District 2 — consolidated with Toluca Community Unit School District 2 and Minonk-Dana-Rutland Community Unit School District 108 to from Fieldcrest Community Unit School District 6 in 1992[26]
Sparland Unit School District 3 — consolidated with Mid-County Unit School District 4 to form Midland Community Unit School District 7 in 1995[19]
Henry-Senachwine Community School District 20 — consolidated with Henry Community Consolidated School District 35 and Senachwine Community School District 534 to form Henry-Senachwine Community Unit School District 5 in 1989[24]
Henry Community Consolidated School District 35 — consolidated with Henry-Senachwine Community School District 20 and Senachwine Community School District 534 to form Henry-Senachwine Community Unit School District 5 in 1989[24]
Easton Community Unit School District 121 — consolidated with San Jose Community Unit School District 122 and Mason City Community Unit School District 123 to form Illini Central Community Unit School District 189 in 1989[24]
San Jose Community Unit School District 122 — consolidated with Easton Community Unit School District 121 and Mason City Community Unit School District 123 to form Illini Central Community Unit School District 189 in 1989[24]
Mason City Community Unit School District 123 — consolidated with Easton Community Unit School District 121 and San Jose Community Unit School District 122 to form Illini Central Community Unit School District 189 in 1989[24]
Forman Community Unit School District 124 — consolidated with Green Valley Community High School District 306 and Green Valley Community Consolidated School District 695 to form Midwest Central Community Unit School District 191 in 1991[26]
Union Community School District 8 — consolidated with Hawthorn Community Consolidated School District 17 and Marengo Community School District 140 to form Marengo-Union Elementary School District 165 in 1987[25]
Marengo Community School District 140 — consolidated with Union Community School District 8 and Hawthorn Community Consolidated School District 17 to form Marengo-Union Elementary School District 165 in 1987[25]
Octavia Community Unit School District 8 — consolidated with Saybrook-Arrowsmith Community Unit School District 11 to form Ridgeview Community Unit School District 19 in 1989[24]
Bellflower Community Consolidated School District 88 — consolidated with Farmer City/Mansfield Community Unit School District 17 and Bellflower Township High School District 311 to form Blue Ridge Community Unit School District 18 in 1985[23]
Bellflower Township High School District 311 — consolidated with Farmer City/Mansfield Community Unit School District 17 and Bellflower Community Consolidated School District 88 to form Blue Ridge Community Unit School District 18 in 1985[23]
Perry School District 57 — annexed into Griggsville Community Unit School District 4 in 1995, which was renamed Griggsville-Perry Community Unit School District 4[19]
Perry Community High School District 172 — annexed into Griggsville Community Unit School District 4 in 1995, which was renamed Griggsville-Perry Community Unit School District 4[19]
Senachwine Community School District 534 — consolidated with Henry-Senachwine Community School District 20 and Henry Community Consolidated School District 35 to form Henry-Senachwine Community Unit School District 5 in 1989[24]
West Richland Community Unit School District 2 — annexed (dissolved) into East Richland Community Unit School District 1 in 2014, which was renamed Richland County Community Unit School District 1[20]
Toulon-LaFayette Community Unit School District 2 — consolidated with Wyoming Community Consolidated School District 27 and Wyoming Community High School District 71 to form Stark County Community Unit School District 100 in 1992[27]
Wyoming Community Consolidated School District 27 — consolidated with Toulon-LaFayette Community Unit School District 2 and Wyoming Community High School District 71 to form Stark County Community Unit School District 100 in 1992[27]
Wyoming Community High School District 71 — consolidated with Toulon-LaFayette Community Unit School District 2 and Wyoming Community Consolidated School District 27 to form Stark County Community Unit School District 100 in 1992[27]
Green Valley Community High School District 306 — consolidated with Forman Community Unit School District 124 and Green Valley Community Consolidated School District 695 to form Midwest Central Community Unit School District 191 in 1991[26]
Green Valley Community Consolidated School District 695 — consolidated with Forman Community Unit School District 124 and Green Valley Community High School District 306 to form Midwest Central Community Unit School District 191 in 1991[26]
Monmouth Unit School District 38 — consolidated with Roseville Community Unit School District 200 to form Monmouth-Roseville Community Unit School District 238 in 2005[13]
Enfield Community Unit School District 4 — annexed into Norris City-Omaha Community Unit School District 3 in 1985, which was renamed Norris City-Omaha-Enfield Community Unit School District 3[23]
Tampico Community Unit School District 4 — annexed into Prophetstown-Lyndon Community Unit School District 3 in 1996, which was renamed Prophetstown-Lyndon-Tampico Community Unit School District 3[19]
East Coloma School District 12 — consolidated with Nelson Public School District 8 to form East Coloma-Nelson Consolidated Elementary School District 20 in 2013[20]
