El Codigo de Area 309 incluye localidades dentro de ILLINOIS.
Las localidades con Codigo de Area 309 mas populares son: 1) Annawan. 2) Aledo. 3) Altona. 4) Alexis. 5) Arrowsmith. 6) Avon. 7) Atkinson. 8) Alpha. 9) Adair. 10) Bellflower.
En la siguiente tabla se muestran las localidades con Codigo de Area 309.
| Localidad | Condado | Estado | Codigo de Area |
|---|---|---|---|
| LITTLETON | ILLINOIS | Codigo 309 | |
| LONDON MILLS | ILLINOIS | Codigo 309 | |
| LOW POINT | ILLINOIS | Codigo 309 | |
| MACKINAW | ILLINOIS | Codigo 309 | |
| MACOMB | ILLINOIS | Codigo 309 | |
| MANITO | ILLINOIS | Codigo 309 | |
| MAQUON | ILLINOIS | Codigo 309 | |
| MARIETTA | ILLINOIS | Codigo 309 | |
| MATHERVILLE | ILLINOIS | Codigo 309 | |
| MCLEAN | ILLINOIS | Codigo 309 | |
| METAMORA | ILLINOIS | Codigo 309 | |
| MINERAL | ILLINOIS | Codigo 309 | |
| MINIER-ARMINGTON | ILLINOIS | Codigo 309 | |
| MINONK | ILLINOIS | Codigo 309 | |
| MOLINE | ILLINOIS | Codigo 309 | |
| MOLINE COAL VALLEY | ILLINOIS | Codigo 309 | |
| MONMOUTH | ILLINOIS | Codigo 309 | |
| MORTON | ILLINOIS | Codigo 309 | |
| MOSSVILLE | ILLINOIS | Codigo 309 | |
| NEPONSET | ILLINOIS | Codigo 309 | |
| NEW BOSTON | ILLINOIS | Codigo 309 | |
| NEW WINDSOR | ILLINOIS | Codigo 309 | |
| NORTH HENDERSON | ILLINOIS | Codigo 309 | |
| NORTH PEKIN | ILLINOIS | Codigo 309 | |
| ONEIDA | ILLINOIS | Codigo 309 | |
| OQUAWKA | ILLINOIS | Codigo 309 | |
| ORION | ILLINOIS | Codigo 309 | |
| OSCO | ILLINOIS | Codigo 309 | |
| PEKIN | ILLINOIS | Codigo 309 | |
| PEORIA BARTONVILLE | ILLINOIS | Codigo 309 | |
| PEORIA BLUFFS | ILLINOIS | Codigo 309 | |
| PEORIA EAST | ILLINOIS | Codigo 309 | |
| PEORIA JEFFERSON | ILLINOIS | Codigo 309 | |
| PEORIA NORTH | ILLINOIS | Codigo 309 | |
| PLYMOUTH | ILLINOIS | Codigo 309 | |
| PORT BYRON | ILLINOIS | Codigo 309 | |
| PRAIRIE CITY | ILLINOIS | Codigo 309 | |
| PREEMPTION | ILLINOIS | Codigo 309 | |
| PRINCEVILLE | ILLINOIS | Codigo 309 | |
| RARITAN | ILLINOIS | Codigo 309 | |
| REYNOLDS | ILLINOIS | Codigo 309 | |
| RIO | ILLINOIS | Codigo 309 | |
| ROANOKE | ILLINOIS | Codigo 309 | |
| ROCK ISLAND | ILLINOIS | Codigo 309 | |
| ROCK ISLAND EDGINGTON | ILLINOIS | Codigo 309 | |
| ROCK ISLAND MILAN | ILLINOIS | Codigo 309 | |
| ROSEVILLE | ILLINOIS | Codigo 309 | |
| SAN JOSE | ILLINOIS | Codigo 309 | |
| SAYBROOK | ILLINOIS | Codigo 309 | |
| SEATON | ILLINOIS | Codigo 309 | |
| SECOR | ILLINOIS | Codigo 309 | |
| SHERRARD | ILLINOIS | Codigo 309 | |
| SMITHFIELD | ILLINOIS | Codigo 309 | |
| SMITHSHIRE | ILLINOIS | Codigo 309 | |
| SOUTH PEKIN | ILLINOIS | Codigo 309 | |
| SPARLAND | ILLINOIS | Codigo 309 | |
| SPRING BAY | ILLINOIS | Codigo 309 | |
| STANFORD | ILLINOIS | Codigo 309 | |
| STRONGHURST | ILLINOIS | Codigo 309 | |
| SUMMUM | ILLINOIS | Codigo 309 | |
| SUNNYLAND | ILLINOIS | Codigo 309 | |
| SWAN CREEK | ILLINOIS | Codigo 309 | |
| TABLE GROVE | ILLINOIS | Codigo 309 | |
| TALBOTT | ILLINOIS | Codigo 309 | |
| TOPEKA | ILLINOIS | Codigo 309 | |
| TOULON | ILLINOIS | Codigo 309 | |
| TOWANDA | ILLINOIS | Codigo 309 | |
| TREMONT | ILLINOIS | Codigo 309 | |
| TRIVOLI | ILLINOIS | Codigo 309 | |
| VARNA | ILLINOIS | Codigo 309 | |
| VERMONT | ILLINOIS | Codigo 309 | |
| VICTORIA | ILLINOIS | Codigo 309 | |
| VIOLA | ILLINOIS | Codigo 309 | |
| WASHBURN | ILLINOIS | Codigo 309 | |
| WASHINGTON | ILLINOIS | Codigo 309 | |
| WATAGA | ILLINOIS | Codigo 309 | |
| WILLIAMSFIELD | ILLINOIS | Codigo 309 | |
| WOODHULL | ILLINOIS | Codigo 309 | |
| WYOMING | ILLINOIS | Codigo 309 | |
| YATES CITY | ILLINOIS | Codigo 309 |