Illinois School Districts: Enrollment & Teacher Data

Illinois runs 849 public school districts — more than almost any other state. This page puts all of them in one sortable table: enrollment, number of schools, teacher counts, and pupil-teacher ratios, compiled from federal NCES Common Core of Data files. Sort by any column, search by name or county, or download the full dataset as a CSV.

849districts
1,826,490students enrolled
133,019FTE teachers
12.8:1median pupil-teacher ratio

The 10 Largest Districts in Illinois

Chicago Public Schools dwarfs everything else in the state — it enrolls roughly ten times as many students as the next-largest district. Outside Chicago, the biggest systems cluster in the collar counties and the Rockford and Elgin areas.

#DistrictCountyEnrollmentSchoolsPupil-Teacher
1CHICAGO PUBLIC SCHOOLS DIST 299Cook322,77464313.9:1
2SD U-46Kane34,5485615.3:1
3ROCKFORD SD 205Winnebago27,6614517.3:1
4INDIAN PRAIRIE CUSD 204DuPage25,9473414.5:1
5PLAINFIELD SD 202Will24,6693114.9:1
6CUSD 300McHenry20,4812914.3:1
7CUSD 308Kendall16,8342215.8:1
8NAPERVILLE CUSD 203DuPage16,0362213.7:1
9SCHAUMBURG CCSD 54Cook15,0742812.3:1
10VALLEY VIEW CUSD 365UWill14,8472012.4:1

Lowest Pupil-Teacher Ratios (Districts with 1,000+ Students)

A low pupil-teacher ratio means more licensed teachers per student — often a proxy for smaller classes and more specialist staff. Among mid-size and large districts, these ten have the most teachers per student in the state:

#DistrictCountyPupil-TeacherEnrollment
1LA GRANGE SD 105 SOUTHCook9.3:11,194
2EVANSTON CCSD 65Cook9.8:16,256
3LAKE FOREST SD 67Lake9.9:11,657
4NORTHBROOK SD 28Cook10.0:11,850
5MANNHEIM SD 83Cook10.2:12,341
6WILL COUNTY SD 92Will10.2:11,432
7CCSD 62Cook10.2:14,475
8SKOKIE SD 73-5Cook10.2:11,050
9NORTHBROOK/GLENVIEW SD 30Cook10.2:11,247
10KEENEYVILLE SD 20DuPage10.3:11,326

Pupil-teacher ratio counts all licensed teachers (including specialists), so it runs lower than typical class size. Job seekers: districts with low ratios and rising enrollment tend to hire steadily — see the teaching job outlook for what roles are growing.

All 849 Illinois Districts

DistrictCountyEnrollmentSchoolsTeachersPupil-Teacher
CHICAGO PUBLIC SCHOOLS DIST 299Cook322,77464323,23513.9:1
SD U-46Kane34,548562,25415.3:1
ROCKFORD SD 205Winnebago27,661451,60117.3:1
INDIAN PRAIRIE CUSD 204DuPage25,947341,79314.5:1
PLAINFIELD SD 202Will24,669311,66014.9:1
CUSD 300McHenry20,481291,42914.3:1
CUSD 308Kendall16,834221,06615.8:1
NAPERVILLE CUSD 203DuPage16,036221,17013.7:1
SCHAUMBURG CCSD 54Cook15,074281,22612.3:1
VALLEY VIEW CUSD 365UWill14,847201,19612.4:1
WAUKEGAN CUSD 60Lake13,6662290915.0:1
SPRINGFIELD SD 186Sangamon12,8703599912.9:1
PEORIA SD 150Peoria12,7133286014.8:1
MCLEAN COUNTY USD 5McLean12,5182688514.1:1
AURORA EAST USD 131Kane12,2602081315.1:1
TOWNSHIP HSD 211Cook12,256782814.8:1
TOWNSHIP HSD 214Cook12,1021077615.6:1
ST CHARLES CUSD 303Kane11,6991889013.2:1
CUSD 200DuPage11,6322085813.6:1
PALATINE CCSD 15Cook11,1842082413.6:1
AURORA WEST USD 129Kane11,0351778114.1:1
CHAMPAIGN CUSD 4Champaign10,3572078613.2:1
JOLIET PSD 86Will9,4482264614.6:1
CICERO SD 99Cook8,5981559414.5:1
HUNTLEY COMM SCH DIST 158McHenry8,505960214.2:1
ELMHURST SD 205DuPage8,3281361313.6:1
BARRINGTON CUSD 220Cook8,0251259313.5:1
J S MORTON HSD 201Cook8,009448416.6:1
DECATUR SD 61Macon7,8271641019.1:1
GLENBARD TWP HSD 87DuPage7,747447516.3:1
CONS HSD 230Cook7,717350915.2:1
BELVIDERE CUSD 100Boone7,4721156013.3:1
MOLINE-COAL VALLEY CUSD 40Rock Island7,2401544716.2:1
EDWARDSVILLE CUSD 7Madison7,2111544216.3:1
YORKVILLE CUSD 115Kendall7,1191144915.8:1
JOLIET TWP HSD 204Will6,819437118.4:1
LINCOLN WAY CHSD 210Will6,750339517.1:1
DEKALB CUSD 428DeKalb6,7151246814.4:1
QUINCY SD 172Adams6,276938816.2:1
EVANSTON CCSD 65Cook6,256176419.8:1
HARLEM UD 122Winnebago6,2541145013.9:1
MAINE TOWNSHIP HSD 207Cook6,209440015.5:1
ROCK ISLAND SD 41Rock Island6,2061441115.1:1
WHEELING CCSD 21Cook6,2051348212.9:1
ROUND LAKE CUSD 116Lake6,1891151811.9:1
WOODSTOCK CUSD 200McHenry6,1231241014.9:1
COLLINSVILLE CUSD 10Madison5,9661243413.8:1
COMM CONS SD 59Cook5,8691552011.3:1
GRANITE CITY CUSD 9Madison5,773935416.3:1
LAKE ZURICH CUSD 95Lake5,703841413.8:1
ALTON CUSD 11Madison5,6601138414.7:1
OAK PARK ESD 97Cook5,5421046212.1:1
CHSD 218Cook5,488439314.0:1
CHSD 155McHenry5,340532416.5:1
ARLINGTON HEIGHTS SD 25Cook5,303940213.2:1
BATAVIA USD 101Kane5,240835414.8:1
ORLAND SD 135Cook5,2011037913.7:1
GLENBROOK HSD 225Cook5,092439912.8:1
GENEVA CUSD 304Kane5,0771039712.8:1
BREMEN CHSD 228Cook5,066532315.7:1
NEW LENOX SD 122Will4,9821230716.3:1
CENTRAL CUSD 301Kane4,939727817.8:1
DOWNERS GROVE GSD 58DuPage4,8381333814.3:1
DUNLAP CUSD 323Peoria4,791827917.2:1
DANVILLE CCSD 118Vermilion4,7661127717.2:1
BELLEVILLE TWP HSD 201St. Clair4,752428916.5:1
BLOOMINGTON SD 87McLean4,733936213.1:1
CHSD 99DuPage4,703233214.2:1
KANKAKEE SD 111Kankakee4,6551126417.6:1
PARK RIDGE CCSD 64Cook4,636837412.4:1
EAST ST LOUIS SD 189St. Clair4,6351238811.9:1
BALL CHATHAM CUSD 5Sangamon4,631626917.2:1
NILES TWP HSD 219Cook4,623436912.6:1
ADLAI E STEVENSON HSD 125Lake4,612228216.4:1
WOODLAND CCSD 50Lake4,549438112.0:1
THORNTON TWP HSD 205Cook4,491534413.1:1
PROVISO TWP HSD 209Cook4,476324018.8:1
CCSD 62Cook4,4751144010.2:1
MINOOKA CCSD 201Grundy4,457729815.0:1
URBANA SD 116Champaign4,3711132613.5:1
GLENVIEW CCSD 34Cook4,303836711.7:1
WAUCONDA CUSD 118Lake4,280632113.3:1
MASCOUTAH CUD 19St. Clair4,205528015.0:1
MAYWOOD-MELROSE PARK-BROADVIEW 89Cook4,153932612.8:1
MCHENRY CCSD 15McHenry4,049834111.9:1
TRIAD CUSD 2Madison4,005625116.0:1
O FALLON CCSD 90St. Clair3,979721818.3:1
TROY CCSD 30CWill3,973732312.3:1
KANELAND CUSD 302Kane3,939732212.2:1
GALESBURG CUSD 205Knox3,904827614.1:1
DUPAGE HSD 88DuPage3,856223516.4:1
LOCKPORT TWP HSD 205Will3,817122716.8:1
NORTH SHORE SD 112Lake3,774931611.9:1
HINSDALE TWP HSD 86DuPage3,762329912.6:1
LYONS TWP HSD 204Cook3,761126714.1:1
NEW TRIER TWP HSD 203Cook3,708233711.1:1
HOMER CCSD 33CWill3,697626014.2:1
WARREN TWP HSD 121Lake3,687122316.5:1
GRAYSLAKE CCSD 46Lake3,666927413.4:1
SYCAMORE CUSD 427DeKalb3,665726114.0:1
EAST MAINE SD 63Cook3,648729712.3:1
MARION CUSD 2Williamson3,640727213.4:1
FREEPORT SD 145Stephenson3,638827913.0:1
LEYDEN CHSD 212Cook3,606224015.0:1
EVANSTON TWP HSD 202Cook3,582226713.4:1
HINSDALE CCSD 181DuPage3,564932011.1:1
HAWTHORN CCSD 73Lake3,506932910.7:1
KILDEER COUNTRYSIDE CCSD 96Lake3,495724614.2:1
NORTH CHICAGO SD 187Lake3,482826113.3:1
KIRBY SD 140Cook3,475726613.1:1
GLEN ELLYN SD 41DuPage3,474524114.4:1
ADDISON SD 4DuPage3,442930211.4:1
MAHOMET-SEYMOUR CUSD 3Champaign3,411420516.7:1
BELLEVILLE SD 118St. Clair3,3571125413.2:1
OAK LAWN-HOMETOWN SD 123Cook3,332624513.6:1
NORTH PALOS SD 117Cook3,325523214.3:1
WILMETTE SD 39Cook3,285628511.6:1
CHSD 128Lake3,284325313.0:1
CCSD 93DuPage3,282931610.4:1
THORNTON FRACTIONAL TWP HSD 215Cook3,276421215.4:1
WEST CHICAGO ESD 33DuPage3,267931410.4:1
MORTON CUSD 709Tazewell3,260721615.1:1
BURBANK SD 111Cook3,235822714.2:1
STERLING CUSD 5Whiteside3,228620216.0:1
JACKSONVILLE SD 117Morgan3,1891124612.9:1
OAK PARK - RIVER FOREST SD 200Cook3,181123613.8:1
PEKIN PSD 108Tazewell3,1771122314.3:1
SD 45 DUPAGE COUNTYDuPage3,169924013.2:1
TWP HSD 113Lake3,144225412.4:1
BLOOM TWP HSD 206Cook3,104317318.0:1
MATTOON CUSD 2Coles3,075620914.7:1
CAHOKIA CUSD 187St. Clair3,056916518.6:1
BERWYN SOUTH SD 100Cook3,048826711.4:1
LOMBARD SD 44DuPage3,001824212.4:1
MINOOKA CHSD 111Grundy2,985116717.9:1
COOK COUNTY SD 130Cook2,9451223212.7:1
LA GRANGE SD 102Cook2,924623212.6:1
ELMWOOD PARK CUSD 401Cook2,877420713.9:1
HOMEWOOD FLOSSMOOR CHSD 233Cook2,802120513.7:1
WOODRIDGE SD 68DuPage2,798722212.6:1
HIGHLAND CUSD 5Madison2,780619514.2:1
WATERLOO CUSD 5Monroe2,742517016.2:1
DEERFIELD SD 109Lake2,715626310.3:1
ANTIOCH CCSD 34Lake2,681520113.3:1
FRANKFORT CCSD 157CWill2,675317715.2:1
CHICAGO HEIGHTS SD 170Cook2,6551120313.1:1
CHARLESTON CUSD 1Coles2,652617615.1:1
EAST MOLINE SD 37Rock Island2,615720512.7:1
CHSD 117Lake2,614318014.5:1
GRAYSLAKE CHSD 127Lake2,581220512.6:1
LAKE PARK CHSD 108DuPage2,579116715.5:1
LEMONT-BROMBEREK CSD 113ACook2,577417115.1:1
ZION-BENTON TWP HSD 126Lake2,573216615.5:1
O FALLON TWP HSD 203St. Clair2,559115516.5:1
APTAKISIC-TRIPP CCSD 102Lake2,548419712.9:1
PRAIRIE-HILLS ESD 144Cook2,538916115.8:1
LANSING SD 158Cook2,531516515.3:1
HARVARD CUSD 50McHenry2,499522111.3:1
BERWYN NORTH SD 98Cook2,483417114.5:1
DIXON USD 170Lee2,471514616.9:1
GENESEO CUSD 228Henry2,444516914.4:1
LAKE VILLA CCSD 41Lake2,440416814.6:1
PLANO CUSD 88Kendall2,434517513.9:1
JERSEY CUSD 100Jersey2,432613917.6:1
INDIAN SPRINGS SD 109Cook2,426620811.6:1
MT ZION CUSD 3Macon2,414513817.5:1
SUMMIT HILL SD 161Will2,398622510.6:1
RICH TWP HSD 227Cook2,396218612.8:1
MATTESON ESD 162Cook2,379718912.6:1
HERRIN CUSD 4Williamson2,358417613.4:1
BETHALTO CUSD 8Madison2,357515914.8:1
CCSD 146Cook2,356519612.0:1
RIDGELAND SD 122Cook2,352518013.0:1
MANNHEIM SD 83Cook2,341623010.2:1
BOURBONNAIS SD 53Kankakee2,337516314.3:1
CARY CCSD 26McHenry2,333518512.6:1
MARQUARDT SD 15DuPage2,327521510.8:1
DOLTON SD 149Cook2,318810322.5:1
FLOSSMOOR SD 161Cook2,314516314.2:1
EFFINGHAM CUSD 40Effingham2,281617013.4:1
MUNDELEIN CONS HSD 120Lake2,261114016.2:1
CCSD 89DuPage2,242513816.3:1
MCHENRY CHSD 156McHenry2,230114615.3:1
TAYLORVILLE CUSD 3Christian2,226414615.3:1
RICHLAND COUNTY CUSD 1Richland2,182414415.1:1
CARTERVILLE CUSD 5Williamson2,166414115.3:1
ZION ESD 6Lake2,161715813.7:1
BERKELEY SD 87Cook2,143617912.0:1
COAL CITY CUSD 1Grundy2,134513915.3:1
LIBERTYVILLE SD 70Lake2,131517911.9:1
MOUNT PROSPECT SD 57Cook2,123415214.0:1
PALOS CCSD 118Cook2,114315114.1:1
CANTON UNION SD 66Fulton2,098516312.9:1
IL VALLEY CENTRAL USD 321Peoria2,093814214.8:1
LYONS SD 103Cook2,086619110.9:1
CHSD 94DuPage2,074113715.1:1
FREMONT SD 79Lake2,068315413.4:1
DOLTON SD 148Cook2,0581016212.7:1
BENSENVILLE SD 2DuPage2,048318311.2:1
ROCHESTER CUSD 3ASangamon2,047513015.8:1
BELLWOOD SD 88Cook2,021714713.7:1
KEWANEE CUSD 229Henry2,009713315.1:1
MACOMB CUSD 185McDonough2,007515513.0:1
BEACH PARK CCSD 3Lake1,980514713.5:1
REAVIS TWP HSD 220Cook1,961111117.6:1
MANHATTAN SD 114Will1,946311816.5:1
COLUMBIA CUSD 4Monroe1,942412415.7:1
MURPHYSBORO CUSD 186Jackson1,930514513.3:1
BRADLEY BOURBONNAIS CHSD 307Kankakee1,913112615.2:1
LINCOLNSHIRE-PRAIRIEVIEW SD 103Lake1,895415911.9:1
GURNEE SD 56Lake1,891416011.9:1
MASSAC UD 1Massac1,882714812.8:1
HONONEGAH CHD 207Winnebago1,865111216.7:1
OAK LAWN CHSD 229Cook1,861111216.6:1
UNITED TWP HSD 30Rock Island1,859110917.1:1
MANTENO CUSD 5Kankakee1,854314113.2:1
SANDWICH CUSD 430DeKalb1,853614113.2:1
NORTHBROOK SD 28Cook1,850418510.0:1
HOMEWOOD SD 153Cook1,849315811.7:1
ARGO CHSD 217Cook1,841112414.8:1
SKOKIE SD 69Cook1,816314212.8:1
GRANT CHSD 124Lake1,811112015.1:1
WINNETKA SD 36Cook1,789516710.7:1
HARRISBURG CUSD 3Saline1,788514312.5:1
OTTAWA ESD 141LaSalle1,773514012.7:1
OLYMPIA CUSD 16McLean1,750511715.0:1
EVERGREEN PARK ESD 124Cook1,744514312.2:1
RIVERSIDE SD 96Cook1,743513413.0:1
SKOKIE SD 68Cook1,741413213.2:1
PEKIN CSD 303Tazewell1,737111515.2:1
KINNIKINNICK CCSD 131Winnebago1,7254
CLINTON CUSD 15De Witt1,722514212.1:1
PRAIRIE CENTRAL CUSD 8Livingston1,722614611.8:1
BIG HOLLOW SD 38Lake1,698311814.4:1
JOHNSBURG CUSD 12McHenry1,696412813.3:1
RANTOUL CITY SD 137Champaign1,690714811.4:1
QUEEN BEE SD 16DuPage1,685412613.4:1
MONTICELLO CUSD 25Piatt1,681412213.8:1
HERSCHER CUSD 2Kankakee1,678411414.7:1
RIVERSIDE-BROOKFIELD TWP SD 208Cook1,664110116.4:1
LAKE FOREST SD 67Lake1,65751679.9:1
ROXANA CUSD 1Madison1,654412413.4:1
ESD 159Cook1,648512713.0:1
CARBONDALE ESD 95Jackson1,614411913.6:1
ROCKTON SD 140Winnebago1,60739716.6:1
MONMOUTH-ROSEVILLE CUSD 238Warren1,599511314.2:1
ROCHELLE CCSD 231Ogle1,578411314.0:1
ALSIP-HAZLGRN-OAKLWN SD 126Cook1,572511913.2:1
MUNDELEIN ESD 75Lake1,564411913.2:1
MOKENA SD 159Will1,550310814.3:1
HARVEY SD 152Cook1,54469117.0:1
MIDLOTHIAN SD 143Cook1,543412412.4:1
BOND COUNTY CUSD 2Bond1,540512412.4:1
HILLSBORO CUSD 3Montgomery1,539411113.9:1
ROBINSON CUSD 2Crawford1,538411413.5:1
LISLE CUSD 202DuPage1,530312112.7:1
FRANKFORT CUSD 168Franklin1,524411912.8:1
EUREKA CUD 140Woodford1,52359715.7:1
PARK FOREST SD 163Cook1,523610913.9:1
TOLONO CUSD 7Champaign1,519411713.0:1
FOREST RIDGE SD 142Cook1,511410814.0:1
STREATOR ESD 44LaSalle1,510310414.5:1
NORTH BOONE CUSD 200Boone1,509611313.4:1
RIVER TRAILS SD 26Cook1,501412811.7:1
BEARDSTOWN CUSD 15Cass1,495310015.0:1
MERIDIAN CUSD 223Ogle1,495410314.5:1
GENOA KINGSTON CUSD 424DeKalb1,494412212.3:1
MOUNT VERNON SD 80Jefferson1,491411413.1:1
PROSPECT HEIGHTS SD 23Cook1,474411213.1:1
VANDALIA CUSD 203Fayette1,460311612.5:1
BYRON CUSD 226Ogle1,453311612.6:1
WASHINGTON CHSD 308Tazewell1,45118616.9:1
WILLIAMSVILLE CUSD 15Sangamon1,45139914.7:1
SOUTH HOLLAND SD 151Cook1,450411412.7:1
SUMMIT SD 104Cook1,447513011.1:1
STEGER SD 194Will1,43939415.3:1
WESTERN SPRINGS SD 101Cook1,437412411.6:1
WILL COUNTY SD 92Will1,432414110.2:1
EAST PEORIA SD 86Tazewell1,424712411.4:1
CHICAGO RIDGE SD 127-5Cook1,422310513.5:1
FENTON CHSD 100DuPage1,42219515.0:1
WABASH CUSD 348Wabash1,42249714.6:1
MAERCKER SD 60DuPage1,417310413.6:1
OREGON CUSD 220Ogle1,40729315.1:1
DU QUOIN CUSD 300Perry1,402310113.8:1
LAKE FOREST CHSD 115Lake1,375112411.1:1
REED CUSTER CUSD 255UWill1,375311711.8:1
BROOKFIELD LAGRANGE PARK SD 95Cook1,365210013.7:1
SCHILLER PARK SD 81Cook1,357311312.1:1
RIVER FOREST SD 90Cook1,350312211.1:1
NORTHBROOK ESD 27Cook1,347311711.5:1
SHERRARD CUSD 200Mercer1,34459514.2:1
FLORA CUSD 35Clay1,33939913.5:1
CUSD 201DuPage1,332511012.1:1
KEENEYVILLE SD 20DuPage1,326412910.3:1
WESCLIN CUSD 3Clinton1,31849613.8:1
BLOOMINGDALE SD 13DuPage1,31439413.9:1
LEMONT TWP HSD 210Cook1,30518914.8:1
CARMI-WHITE COUNTY CUSD 5White1,304710312.7:1
LITCHFIELD CUSD 12Montgomery1,30069813.3:1
WILMINGTON CUSD 209UWill1,29848814.8:1
BRADLEY SD 61Kankakee1,297311311.5:1
PEOTONE CUSD 207UWill1,296511011.8:1
CARLINVILLE CUSD 1Macoupin1,29549613.4:1
PLEASANT PLAINS CUSD 8Sangamon1,28438914.4:1
CENTRAL SD 51Tazewell1,27627816.4:1
OTTAWA TWP HSD 140LaSalle1,27029313.7:1
WINNEBAGO CUSD 323Winnebago1,268410212.4:1
FRANKLIN PARK SD 84Cook1,266410911.6:1
MERCER COUNTY SCHOOL DISTRICT 404Mercer1,265510512.1:1
DARIEN SD 61DuPage1,258311011.4:1
SHELBYVILLE CUSD 4Shelby1,25749013.9:1
NORTHBROOK/GLENVIEW SD 30Cook1,247312210.2:1
MT VERNON TWP HSD 201Jefferson1,24019013.8:1
RIVERTON CUSD 14Sangamon1,23939513.0:1
PAXTON-BUCKLEY-LODA CUD 10Ford1,238410312.0:1
FARMINGTON CENTRAL CUSD 265Peoria1,23638913.9:1
POSEN-ROBBINS ESD 143-5Cook1,23558314.9:1
PARIS-UNION SD 95Edgar1,23357316.9:1
LINCOLNWOOD SD 74Cook1,219311310.8:1
GLENCOE SD 35Cook1,217310711.4:1
CCSD 168Cook1,21638214.8:1
MAROA FORSYTH CUSD 2Macon1,20337615.8:1
MARSHALL CUSD 2CClark1,19649812.2:1
PIKELAND CUSD 10Pike1,19638613.9:1
LA GRANGE SD 105 SOUTHCook1,19451299.3:1
LA SALLE-PERU TWP HSD 120LaSalle1,19118813.6:1
SPARTA CUSD 140Randolph1,19138314.4:1
JASPER COUNTY CUD 1Jasper1,18948014.8:1
STAUNTON CUSD 6Macoupin1,18938014.9:1
EL PASO-GRIDLEY CUSD 11Woodford1,17649013.1:1
WHITESIDE SD 115St. Clair1,17628414.0:1
WESTVILLE CUSD 2Vermilion1,16736617.7:1
CHANNAHON SD 17Will1,16348913.1:1
SOUTHWESTERN CUSD 9Macoupin1,16259012.9:1
NORTH MAC CUSD 34Macoupin1,16048613.6:1
PANA CUSD 8Christian1,15148613.3:1
SULLIVAN CUSD 300Moultrie1,14237116.0:1
GILLESPIE CUSD 7Macoupin1,13938713.1:1
CENTER CASS SD 66DuPage1,13037415.3:1
NIPPERSINK SD 2McHenry1,12639212.2:1
NORRIDGE SD 80Cook1,12627115.8:1
TEUTOPOLIS CUSD 50Effingham1,12137515.1:1
HAMILTON CO CUSD 10Hamilton1,11447415.2:1
ARBOR PARK SD 145Cook1,11149112.2:1
HOOPESTON AREA CUSD 11Vermilion1,10349112.2:1
MILLBURN CCSD 24Lake1,09728812.5:1
MORRIS SD 54Grundy1,09727913.9:1
ELDORADO CUSD 4Saline1,08638213.3:1
PONTIAC CCSD 429Livingston1,08349211.8:1
RIVERDALE CUSD 100Rock Island1,08238113.3:1
AUBURN CUSD 10Sangamon1,08048013.6:1
MARENGO-UNION E CONS D 165McHenry1,08037115.3:1
TRI VALLEY CUSD 3McLean1,08038313.1:1
ISU LABORATORY SCHOOLSMcLean1,07829311.6:1
PRINCETON ESD 115Bureau1,07158013.4:1
ROCKRIDGE CUSD 300Rock Island1,07157514.3:1
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ODELL CCSD 435Livingston1621179.5:1
PLEASANT HILL SD 69Peoria16211411.6:1
GIFFORD CCSD 188Champaign16111411.5:1
DIMMICK COMM CONS SD #175LaSalle15511212.6:1
ROBEIN SD 85Tazewell15411410.9:1
ALBERS SD 63Clinton14811410.6:1
BURNHAM SD 154-5Cook14811015.1:1
HOLLIS CONS SD 328Peoria14811211.9:1
RONDOUT SD 72Lake1481188.1:1
BETHEL SD 82Jefferson14511310.8:1
GARDNER CCSD 72CGrundy14511311.2:1
GARDNER S WILMINGTON TWP HSD 73Grundy1411197.3:1
OPDYKE-BELLE-RIVE CCSD 5Jefferson13811310.2:1
ACE AMANDLA CHARTER SCHOOLCook13711310.5:1
ALLENDALE CCSD 17Wabash13711112.3:1
THOMASBORO CCSD 130Champaign1361158.9:1
WILLOW GROVE SD 46Clinton1351149.6:1
BROOKLYN UD 188St. Clair1343914.9:1
NORTH WAMAC SD 186Clinton13211012.7:1
BRACEVILLE SD 75Grundy13011310.0:1
LICK CREEK CCSD 16Union12911111.7:1
POTOMAC CUSD 10Vermilion1291158.6:1
LISBON CCSD 90Kendall12811111.4:1
UNION SD 81Will12811210.4:1
IDJJ SCH DIST 428Cook1275363.5:1
PAW PAW CUSD 271Lee1272158.3:1
ASHLEY CCSD 15Washington12611012.6:1
TONICA CCSD 79LaSalle1231139.5:1
SAUNEMIN CCSD 438Livingston1201158.0:1
PRAIRIE DU ROCHER CCSD 134Randolph1191913.1:1
ARMSTRONG TWP HSD 225Vermilion1141148.1:1
AKIN CCSD 91Franklin1121138.6:1
CORNELL CCSD 426Livingston1121138.6:1
CYPRESS SD 64Johnson1091119.9:1
SHIRLAND CCSD 134Winnebago1051128.8:1
TAMAROA SCHOOL DIST 5Perry991812.4:1
ALLEN-OTTER CREEK CCSD 65LaSalle941118.3:1
GEFF CCSD 14Wayne941127.8:1
ARMSTRONG-ELLIS CONS SD 61Vermilion891118.1:1
BRUSSELS CUSD 42Calhoun862127.2:1
MALDEN CCSD 84Bureau861810.2:1
SOUTH WILMINGTON CCSD 74Grundy861810.8:1
VENICE CUSD 3Madison85199.4:1
DAMIANSVILLE SD 62Clinton821107.9:1
OHIO CCSD 17Bureau801126.7:1
NETTLE CREEK CCSD 24CGrundy781117.0:1
ESWOOD CCSD 269Ogle761126.5:1
KINGS CONS SD 144Ogle761117.2:1
NEW HOLLAND-MIDDLETOWN ED 88Logan751126.3:1
KELL CONS SD 2Marion741612.3:1
GRAND PRAIRIE CCSD 6Jefferson731710.2:1
ST LIBORY CONS SD 30St. Clair70189.3:1
IRVINGTON CCSD 11Washington681611.3:1
LOSTANT CUSD 425LaSalle621610.9:1
ROOKS CREEK CCSD 425Livingston621610.3:1
SPRING LAKE CCSD 606Tazewell591414.8:1
BUNCOMBE CONS SD 43Johnson58178.9:1
OAKDALE CCSD 1Washington58178.3:1
STEWARD ESD 220Lee561115.1:1
FARRINGTON CCSD 99Jefferson53168.7:1
DALZELL SD 98Bureau52177.9:1
LUDLOW CCSD 142Champaign48186.0:1
MCCLELLAN CCSD 12Jefferson45158.2:1
DEER PARK CCSD 82LaSalle37194.1:1
OHIO CHSD 505Bureau26155.2:1
B H R A COOPERATIVE HSVermilion11230.0:1

Methodology & Source

District rosters, enrollment, and school counts come from the U.S. Department of Education's NCES Common Core of Data (CCD). Teacher full-time-equivalent (FTE) counts, pupil-teacher ratios, paraprofessional and counselor counts come from the CCD staffing collection (2024 files, the most recent available). Data was last refreshed 2026-07-03. A few very small or reorganized districts lack staffing records and show a dash. Details on how we handle all data on this site are on the data sources page.

Reuse this data freely — it's public federal data, cleaned and joined: illinois-school-districts.csv. If you publish something with it, a link back here is appreciated.

Frequently Asked Questions

How many school districts does Illinois have?

Illinois has 849 operating public school districts in the National Center for Education Statistics (NCES) Common Core of Data — one of the highest counts of any state. They are split among unified K-12 districts, elementary-only districts, and high-school-only districts, a structure that dates back over a century.

What is the largest school district in Illinois?

Chicago Public Schools (District 299) is by far the largest, with over 320,000 students — roughly ten times the size of the second-largest district, School District U-46 in Elgin (about 35,000 students).

What is a good pupil-teacher ratio?

The national public school average is roughly 15-16 students per teacher. Ratios in Illinois districts range from under 10:1 in some small rural districts to over 20:1. Note that pupil-teacher ratio is not the same as class size — it counts all licensed teachers, including specialists who do not lead a classroom.

Where does this data come from?

District names, enrollment, and school counts come from the NCES Common Core of Data (CCD), the federal government's official listing of public schools. Teacher FTE counts, pupil-teacher ratios, paraprofessional and counselor counts come from the CCD staffing files (2024 collection). You can download the full dataset as a CSV on this page.