List of Schools In Illinois
# | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| School Name | City | Grades |
|---|---|---|
| O FALLON HIGH SCHOOL 600 SOUTH SMILEY ST | O FALLON | 9-12 |
| O NEILL MIDDLE SCHOOL 635 59TH ST | DOWNERS GROVE | 7-8 |
| O PLAINE SCHOOL 333 NORTH OPLAINE RD | GURNEE | 3-5 |
| O W HUTH MIDDLE SCHOOL 3718 WEST 213TH PLACE | MATTESON | 7-8 |
| OAK CREST SCHOOL 38550 NORTH LEWIS AVE | BEACH PARK | PK-5 |
| OAK ELEMENTARY SCHOOL 950 SOUTH OAK ST | HINSDALE | KG-5 |
| OAK FOREST HIGH SCHOOL 15201 SOUTH CENTRAL AVE | OAK FOREST | 9-12 |
| OAK GLEN ELEMENTARY SCHOOL 2101 182ND ST | LANSING | KG-5 |
| OAK GROVE ACCELERATED SCHOOL 2160 WEST CENTER ST | DECATUR | KG-6 |
| OAK GROVE ATTENDANCE CENTER SCHOOL RR 1 | WAYNE CITY | PK-KG |
| OAK GROVE EAST ELEMENTARY SCHOOL 4812 WEST PFEIFFER RD | PEORIA | PK-5 |
| OAK GROVE ELEMENTARY SCHOOL 1700 SOUTH OPLAINE RD | LIBERTYVILLE | KG-8 |
| OAK GROVE WEST SCHOOL 6018 WEST LANCASTER ST | PEORIA | 6-8 |
| OAK LAWN COMMUNITY HIGH SCHOOL 9400 SW HWY | OAK LAWN | 9-12 |
| OAK LAWN-HOMETOWN MIDDLE SCHOOL 5345 WEST 99TH ST | OAK LAWN | 6-8 |
| OAK PARK & RIVER FOREST HIGH SCHOOL 201 NORTH SCOVILLE AVE | OAK PARK | 9-12 |
| OAK PARK ELEMENTARY SCHOOL 1200 FRONT ST | AURORA | PK-5 |
| OAK PRAIRIE JR HIGH SCHOOL 15161 SOUTH GOUGAR RD | HOMER GLEN | 6-8 |
| OAK RIDGE ELEMENTARY SCHOOL 8791 WEST 103RD ST | PALOS HILLS | 2-5 |
| OAK RIDGE SCHOOL 229 LAKE MARIAN RD | CARPENTERSVILLE | 8-12 |
| OAK TERRACE ELEMENTARY SCHOOL 240 PRAIRIE AVE | HIGHWOOD | KG-5 |
| OAK VALLEY ELEMENTARY SCHOOL 1705 RICHARDS ST | JOLIET | PK-KG |
| OAK VIEW ELEMENTARY SCHOOL 150 NORTH SCHMIDT RD | BOLINGBROOK | KG-5 |
| OAKBROOK ELEMENTARY SCHOOL 170 SOUTH WOOD DALE RD | WOOD DALE | KG-2 |
| OAKDALE ELEMENTARY SCHOOL 601 SOUTH ADELAIDE ST | NORMAL | PK-5 |
| OAKDALE ELEMENTARY SCHOOL 2230 NORTH MCAREE RD | WAUKEGAN | KG-5 |
| OAKDALE GRADE SCHOOL 280 EAST MAIN ST | OAKDALE | KG-8 |
| OAKHILL ELEMENTARY SCHOOL 502 SOUTH OLTENDORF RD | STREAMWOOD | KG-6 |
| OAKLAND ELEMENTARY SCHOOL 22018 WEST GRASS LK | ANTIOCH | 2-5 |
| OAKLAND ELEMENTARY SCHOOL 1605 EAST OAKLAND AVE | BLOOMINGTON | KG-5 |
| OAKLAND HIGH SCHOOL N LOGAN ST | OAKLAND | 9-12 |
| OAKLAND PARK ELEMENTARY SCHOOL 701 SOUTH STERLING ST | STREATOR | KG-5 |
| OAKTON ELEMENTARY SCHOOL 436 RIDGE AVE | EVANSTON | KG-5 |
| OAKWOOD GRADE SCHOOL 408 SOUTH SCOTT ST | OAKWOOD | PK-6 |
| OAKWOOD HIGH SCHOOL 5870 US ROUTE 150 | FITHIAN | 9-12 |
| OAKWOOD JUNIOR HIGH SCHOOL 21600 NORTH 900 EAST RD | DANVILLE | 7-8 |
| OAKWOOD SCHOOL 1130 KIM PLACE | LEMONT | KG-2 |
| OBLONG ELEMENTARY SCHOOL 600 WEST MAIN ST | OBLONG | PK-8 |
| OBLONG HIGH SCHOOL 700 SOUTH RANGE ST | OBLONG | 9-12 |
| ODELL GRADE SCHOOL 203 NORTH EAST ST | ODELL | PK-8 |
| ODIN ELEMENTARY SCHOOL PO BOX 250 | ODIN | KG-8 |
| ODIN HIGH SCHOOL 100 MERRITT ST | ODIN | 9-12 |
| OFF CAMPUS LEARNING CENTER SCHOOL 7700 GROSS POINT RD | SKOKIE | 9-12 |
| OGDEN AVE ELEMENTARY SCHOOL 501 WEST OGDEN AVE | LA GRANGE | KG-6 |
| OGDEN ELEMENTARY SCHOOL 304 NORTH MARKET ST | OGDEN | KG-6 |
| OGDEN ELEMENTARY SCHOOL 24 WEST WALTON ST | CHICAGO | PK-9 |
| OGDEN INT HIGH SCHOOL 1250 WEST ERIE ST | CHICAGO | 6-9 |
| OGLESBY ELEMENTARY SCHOOL 7646 SOUTH GREEN ST | CHICAGO | PK-8 |
| OHIO & WABASH VALLEY RVS SCHOOL 800 SOUTH DIVISION ST | NORRIS CITY | 9-12 |
| OHIO COM CONS GRADE SCHOOL PO BOX 478 | OHIO | KG-8 |
| OHIO COMMUNITY HIGH SCHOOL 103 MEMORIAL ST | OHIO | 9-12 |
| OKAW AREA VOCATIONAL CENTER SCHOOL 1109 NORTH 8TH ST | VANDALIA | 10-12 |
| OKAW VALLEY ELEMENTARY SCHOOL 319 NORTH WASHINGTON | BETHANY | PK-3 |
| OKAW VALLEY HIGH SCHOOL 709 SOUTH ST JOHN | BETHANY | 9-12 |
| OKAW VALLEY INTERMEDIATE SCHOOL 206 NORTH MAIN | FINDLAY | 4-5 |
| OKAW VALLEY MIDDLE SCHOOL 501 WEST DIVISION | FINDLAY | 6-8 |
| OKAWVILLE GRADE SCHOOL 301 WEST ILLINOIS ST | OKAWVILLE | KG-5 |
| OKAWVILLE HIGH SCHOOL (JUNIOR / SENIOR) 400 SOUTH HANOVER ST | OKAWVILLE | 6-12 |
| OKEEFFE ELEMENTARY SCHOOL 6940 SOUTH MERRILL AVE | CHICAGO | PK-8 |
| OLD ORCHARD JR HIGH SCHOOL 9310 KENTON AVE | SKOKIE | 6-8 |
| OLD POST ELEMENTARY SCHOOL 100 OLD POST RD | OSWEGO | KG-5 |
| OLD QUARRY MIDDLE SCHOOL 16100 127TH ST | LEMONT | 6-8 |
| OLIVE C MARTIN SCHOOL 24750 WEST DERING LN | LAKE VILLA | KG-6 |
| OLIVE-MARY STITT SCHOOL 303 EAST OLIVE ST | ARLINGTON HEIGHTS | KG-5 |
| OLIVER JULIAN KENDALL ELEMENTARY SCHOOL 2408 MEADOW LAKE DR | NAPERVILLE | KG-5 |
| OLIVER MCCRACKEN MIDDLE SCHOOL 8000 EAST PRAIRIE RD | SKOKIE | 6-8 |
| OLIVER PARKS 6TH GRADE CENTER SCHOOL 1900 MOUSETTE LN REAR | CAHOKIA | 5-6 |
| OLIVER W HOLMES ELEMENTARY SCHOOL 508 NORTH KENILWORTH AVE | OAK PARK | PK-5 |
| OLIVER W HOLMES MIDDLE SCHOOL 221 SOUTH WOLF RD | WHEELING | 6-8 |
| OLNEY C ALLEN ELEMENTARY SCHOOL 700 SOUTH FARNSWORTH AVE | AURORA | PK-5 |
| OLSON MIDDLE SCHOOL 3201 HERCULES RD | WOODSTOCK | 6-8 |
| OLSON PARK ELEMENTARY SCHOOL 1414 MINAHAN DR | MACHESNEY PARK | 1-6 |
| OLYMPIA HIGH SCHOOL 7832 NORTH 100 EAST RD | STANFORD | 9-12 |
| OLYMPIA MIDDLE SCHOOL 911 EAST 800 NORTH RD | STANFORD | 6-8 |
| OLYMPIA NORTH ELEMENTARY SCHOOL 205 NORTH STATE | DANVERS | PK-5 |
| OLYMPIA SOUTH ELEMENTARY SCHOOL 103 NE 5TH ST | ATLANTA | PK-5 |
| OLYMPIA WEST ELEMENTARY SCHOOL 302 NORTH SCHOOL ST | MINIER | PK-5 |
| ONAHAN ELEMENTARY SCHOOL 6634 WEST RAVEN ST | CHICAGO | PK-8 |
| ONTARIOVILLE ELEMENTARY SCHOOL 2100 ELM ST | HANOVER PARK | KG-6 |
| OPDYKE ATTENDANCE CENTER SCHOOL 19380 EAST FOURTH ST | OPDYKE | 4-8 |
| ORANGEVILLE ELEMENTARY SCHOOL 310 SOUTH EAST ST | ORANGEVILLE | PK-6 |
| ORANGEVILLE HIGH SCHOOL 201 SOUTH ORANGE | ORANGEVILLE | 9-12 |
| ORANGEVILLE JR HIGH SCHOOL 201 SOUTH ORANGE | ORANGEVILLE | 7-8 |
| ORCHARD PLACE ELEMENTARY SCHOOL 2727 MAPLE ST | DES PLAINES | PK-5 |
| OREGON ELEMENTARY SCHOOL - ETNYRE WING 1200 JEFFERSON ST | OREGON | 3-6 |
| OREGON ELEMENTARY SCHOOL - JEFFERSON WING 1100 JEFFERSON ST | OREGON | PK-2 |
| OREGON HIGH SCHOOL 210 SOUTH 10TH ST | OREGON | 9-12 |
| ORENIC INTERMEDIATE SCHOOL 5820 WEST THEODORE ST | PLAINFIELD | 5-6 |
| ORIOLE PARK ELEMENTARY SCHOOL 5424 NORTH OKETO AVE | CHICAGO | PK-8 |
| ORION HIGH SCHOOL 1100 13TH ST | ORION | 9-12 |
| ORION MIDDLE SCHOOL 800 12TH AVE | ORION | 6-8 |
| ORLAND CENTER SCHOOL 9407 WEST 151ST ST | ORLAND PARK | PK-2 |
| ORLAND JR HIGH SCHOOL 14855 WEST AVE | ORLAND PARK | 6-8 |
| ORLAND PARK ELEMENTARY SCHOOL 9960 143RD ST | ORLAND PARK | PK-2 |
| OROZCO ELEMENTARY FINE ARTS & SCIENCES SCHOOL 1940 WEST 18TH ST | CHICAGO | KG-8 |
| ORR ACADEMY HIGH 730 NORTH PULASKI RD | CHICAGO | 9-12 |
| ORRINGTON ELEMENTARY SCHOOL 2636 ORRINGTON AVE | EVANSTON | KG-5 |
| ORTIZ DE DOMINGUEZ ELEMENTARY SCHOOL 3000 SOUTH LAWNDALE AVE | CHICAGO | PK-2 |
| OSTER-OAKVIEW SCHOOL 809 NORTH CEDAR RD | NEW LENOX | 4-6 |
| OSWEGO EAST HIGH SCHOOL 1525 HARVEY RD | OSWEGO | 9-12 |
| OSWEGO HIGH SCHOOL 4250 RTE 71 | OSWEGO | 9-12 |
| OSWEGO HIGH SCHOOL ROE SAFE SCHOOL 4259 STATE ROUTE 71 | OSWEGO | 9-12 |
| OTIS ELEMENTARY SCHOOL 525 NORTH ARMOUR ST | CHICAGO | PK-8 |
| OTIS P GRAVES ELEMENTARY SCHOOL 6021 SOUTH 74TH AVE | SUMMIT | PK-4 |
| OTOOLE ELEMENTARY SCHOOL 6550 SOUTH SEELEY AVE | CHICAGO | PK-8 |
| OTTAWA TOWNSHIP HIGH SCHOOL 211 EAST MAIN ST | OTTAWA | 9-12 |
| OTTER CREEK ELEMENTARY SCHOOL 2701 HOPPS RD | ELGIN | PK-6 |
| OVERTON ELEMENTARY SCHOOL 221 EAST 49TH ST | CHICAGO | PK-8 |
| OWEN ELEMENTARY SCHOLASTIC ACADEMY 8247 SOUTH CHRISTIANA AV | CHICAGO | KG-8 |
| OWEN ELEMENTARY SCHOOL 1560 WESTGLEN DR | NAPERVILLE | KG-5 |
| OWEN MARSH ELEMENTARY SCHOOL 1100 AVON DR | SPRINGFIELD | KG-5 |
| OWENS ELEMENTARY COMMUNITY ACADEMY 12450 SOUTH STATE ST | CHICAGO | PK-3 |