| 2011 Baseball Enrollments | ||||
| Class L | Class M | |||
| Collinsville | 4448 | Sparta | 702 | |
| Belleville Central | 3556 | Grant - Fairview Hts. | 672 | |
| Fulton - O'Fallon | 3450 | Chester | 660 | |
| Carriell - O'Fallon | 3400 | Trico | 653 | |
| Marion | 2566 | Breese | 647 | |
| Triad | 2454 | Unity Point | 635 | |
| Highland | 1999 | Fairfield | 598 | |
| Waterloo | 1804 | Christopher | 589 | |
| Herrin | 1624 | Red Bud | 588 | |
| Massac Co. | 1542 | Pinckneyville | 584 | |
| Harrisburg | 1484 | Shiloh | 552 | |
| Mt.Vernon | 1441 | Nashville | 517 | |
| Murphysboro | 1355 | Sesser-Valier | 497 | |
| Carterville | 1350 | Smithton | 493 | |
| West Frankfort | 1308 | Gallatin Co. | 485 | |
| Flora | 1279 | Zeigler-Royalton | 475 | |
| Centralia | 1254 | Meridian | 472 | |
| Carbondale | 1215 | North Clay | 467 | |
| DuQuoin | 1106 | Albion | 461 | |
| Benton | 1021 | South Central | 436 | |
| Wesclin | 950 | Hardin Co. | 429 | |
| Salem | 921 | Lebanon | 419 | |
| Wolf Branch | 867 | Cobden | 413 | |
| Carmi | 866 | Egyptian | 405 | |
| Millstadt | 845 | Goreville | 387 | |
| Hamilton Co. | 796 | Wayne City | 387 | |
| Johnston City | 789 | Vienna | 386 | |
| Carlyle | 782 | Valmeyer | 384 | |
| Dupo | 772 | Pope Co. | 379 | |
| Eldorado | 769 | New Athens | 370 | |
| Emgee - Belleville | 756 | Jonesboro | 368 | |
| Anna | 712 | Marissa | 360 | |
| Class S | ||||
| Good Shepherd | 350 | St.Andrew Co-op | 205 | |
| Aviston | 347 | Joppa | 205 | |
| Sandoval | 347 | Bethel-McCl. Co-op | 205 | |
| Okawville | 338 | Unity Christian | 201 | |
| Norris City-Omaha | 333 | Grayville | 200 | |
| Cisne | 324 | Odin | 194 | |
| Cairo | 323 | Clay City | 190 | |
| Carrier Mills | 320 | Hoyleton Co-op | 189 | |
| Woodlawn | 318 | Altamont Luth. Co-op | 188 | |
| Elverado | 213 | West Salem | 187 | |
| S. Peter/Paul-WAT | 306 | Noble | 185 | |
| Century | 300 | New Hope | 182 | |
| Rome | 287 | Ashley-St.M-Co-op | 181 | |
| Galatia | 286 | Opdyke | 180 | |
| Bluford | 285 | Willow Grove | 178 | |
| Crab Orchard | 281 | St.Ann-TSJ Co-op | 175 | |
| Shawnee | 277 | Tr. Luth. / Edwardsville | 175 | |
| Steeleville | 272 | Patoka | 173 | |
| Giant City | 270 | Pinckneyville #204 | 165 | |
| OLMC-Herrin | 269 | Prairie DuRocher | 161 | |
| Waltonville | 269 | Coulterville | 157 | |
| St.Paul-Highland | 262 | Creal Springs | 154 | |
| Field | 261 | Evansville | 146 | |
| Desoto | 250 | St.Marys-Mt.Vernon | 140 | |
| Summersville | 243 | St. Johns-Chester | 133 | |
| Jasper-Geff Co-op | 243 | Dodds | 129 | |
| S.Bruno-Tam. Co-op | 240 | St.John Luth.-RB | 124 | |
| New Smipson Hill | 240 | Enfield | 119 | |
| Iuka | 238 | St.Marks-S'ville | 118 | |
| Thompsonville | 227 | Lick Creek | 114 | |
| Central City | 225 | Ina | 101 | |
| Cypress-Bun.-Co-op | 222 | St.John Cath.-RB | 85 | |
| Ewing | 217 | St. Libory | 83 | |
| Dongola | 207 | |||
