List of Schools In Pennsylvania
| School Name | City | Grades |
|---|---|---|
| OAK FLAT ELEMENTARY SCHOOL 334 CENTERVILLE RD | NEWVILLE | KG-5 |
| OAK PARK ELEMENTARY SCHOOL 500 SQUIRREL LN | LANSDALE | KG-6 |
| OAK RIDGE ELEMENTARY SCHOOL 465 MOYER RD | HARLEYSVILLE | KG-5 |
| OAKLAND SCHOOL 2111 CREEK RD | COOPERSTOWN | KG-5 |
| OAKLAND TOWNSHIP (TWP) SCHOOL 545 CHICORA RD | BUTLER | KG-6 |
| OAKLYN SCHOOL 115 OAK ST | SUNBURY | KG-5 |
| OAKMONT SCHOOL 630 LORAINE ST | ARDMORE | KG-5 |
| OAKS ELEMENTARY SCHOOL OAKS SCHOOL DR | OAKS | KG-4 |
| OAKVIEW ELEMENTARY SCHOOL 3591 SHARON RD | WEST MIDDLESEX | 4-6 |
| OAKVIEW ELEMENTARY SCHOOL 1387 SCHOOL RD | STONEBORO | PK-4 |
| OBLOCK JUNIOR HIGH SCHOOL 440 PRESQUE ISLE DR | PITTSBURGH | 7-8 |
| OCTORARA AREA HIGH SCHOOL 226 HIGHLAND RD | ATGLEN | 9-12 |
| OCTORARA ELEMENTARY SCHOOL 104 HIGHLAND RD | ATGLEN | 3-4 |
| OCTORARA INTERMEDIATE SCHOOL 221 HIGHLAND RD | ATGLEN | 5-6 |
| OCTORARA MIDDLE SCHOOL 228 HIGHLAND RD | ATGLEN | 7-8 |
| OCTORARA PRIMARY LEARNING CENTER SCHOOL 87 HIGHLAND RD | ATGLEN | KG-2 |
| OHARA ELEMENTARY SCHOOL 115 CABIN LN | PITTSBURGH | KG-5 |
| OIL CITY AREA MIDDLE SCHOOL 8 LYNCH BLVD | OIL CITY | 6-8 |
| OIL CITY HIGH SCHOOL 10 LYNCH BLVD | OIL CITY | 9-12 |
| OKLAHOMA ELEMENTARY SCHOOL 1023 CHESTNUT AVE | DU BOIS | KG-5 |
| OLD FORGE ELEMENTARY SCHOOL 401 MELMORE ST | OLD FORGE | KG-6 |
| OLD FORGE JUNIOR / HIGH SCHOOL 300 MARION ST | OLD FORGE | 7-12 |
| OLEY VALLEY ELEMENTARY SCHOOL 3257 FRIEDENSBURG RD | OLEY | KG-5 |
| OLEY VALLEY HIGH SCHOOL 17 JEFFERSON ST | OLEY | 9-12 |
| OLEY VALLEY MIDDLE SCHOOL 3247 FRIEDENSBURG RD | OLEY | 6-8 |
| OLIVER HIGH SCHOOL 2323 BRIGHTON RD | PITTSBURGH | 9-12 |
| OLNEY ELEMENTARY SCHOOL 5301 NORTH WATER ST | PHILADELPHIA | KG-8 |
| OLNEY HIGH SCHOOL EAST 100 WEST DUNCANNON AVE | PHILADELPHIA | 9-12 |
| OLNEY HIGH SCHOOL WEST 100 WEST DUNCANNON AVE | PHILADELPHIA | 9-12 |
| OPTIONS CENTER SCHOOL 925 BRUSHTON AVE | PITTSBURGH | 6-8 |
| ORANGE STREET ELEMENTARY SCHOOL 845 ORANGE ST | BERWICK | KG-5 |
| ORE VALLEY ELEMENTARY SCHOOL 2620 SPRINGWOOD RD | YORK | KG-5 |
| OREFIELD MIDDLE SCHOOL 2675 PA ROUTE 309 | OREFIELD | 6-8 |
| ORENDORF ELEMENTARY SCHOOL 101 SOUTH HARTMAN ST | MANCHESTER | KG-3 |
| OSBORNE ELEMENTARY SCHOOL 1414 BEAVER ST | SEWICKLEY | KG-5 |
| OSCEOLA MILLS ELEMENTARY SCHOOL 400 COAL ST | OSCEOLA MILLS | PK-12 |
| OSWAYO VALLEY ELEMENTARY SCHOOL 277 OSWAYO ST | SHINGLEHOUSE | PK-5 |
| OSWAYO VALLEY HIGH SCHOOL 318 OSWAYO ST | SHINGLEHOUSE | 9-12 |
| OSWAYO VALLEY MIDDLE SCHOOL 318 SOUTH OSWAYO ST | SHINGLEHOUSE | 6-9 |
| OTTO-ELDRED ELEMENTARY SCHOOL 5 BENNETT ST | ELDRED | PK-6 |
| OTTO-ELDRED JUNIOR / HIGH SCHOOL 143 SWEITZER DR | DUKE CENTER | 7-12 |
| OVERBROOK EDUCATION CENTER SCHOOL 6722 LANSDOWNE AVE | PHILADELPHIA | KG-8 |
| OVERBROOK ELEMENTARY SCHOOL 2032 NORTH 62ND ST | PHILADELPHIA | PK-5 |
| OVERBROOK HIGH SCHOOL 5898 LANCASTER AVE | PHILADELPHIA | 9-12 |
| OVERLOOK SCHOOL 1750 EDGE HILL RD | ABINGTON | KG-6 |
| OWEN J ROBERTS HIGH SCHOOL 981 RIDGE RD | POTTSTOWN | 9-12 |
| OWEN J ROBERTS MIDDLE SCHOOL 881 RIDGE RD | POTTSTOWN | 7-8 |
| OXFORD AREA HIGH SCHOOL 705 WATERWAY RD | OXFORD | 9-12 |
| OXFORD VALLEY ELEMENTARY SCHOOL 430 TRENTON RD | FAIRLESS HILLS | KG-5 |