| Restaurant Name | Cuisine | Neighborhood |
| S-O-P | | |
| Salsarita's | Mexican | Macomb |
| Sam's Pizza | Pizzeria | Oglesby |
| Sam's Pizza | Pizzeria | Ottawa |
| Samantha's Country Diner | Delicatessen | |
| Sapp Bros Illini Inc | | Peru |
| Sassafras | | Normal |
| Sbarro Italian Eatery | Italian | Bloomington |
| Sbarro Italian Eatery | Italian | Peru |
| Schlotzsky's Deli | Delicatessen | |
| Schlotzsky's Deli | Pizzeria | Bloomington |
| Schlotzsky's Deli | Delicatessen | East Peoria |
| Schlotzsky's Deli | Fast Food | Peoria |
| Schlotzskys Deli | Pizzeria | Bloomington |
| Schooner's | | |
| Schooner's of Morton | | Morton |
| Schooners | | Bloomington |
| Scotty's Place | | Pontiac |
| Secret Garden Tea Room & Florists | | Macomb |
| Seibert L | | Morton |
| Senica's Oak Ridge Golf Club Inc | | La Salle |
| Seven Acres Restaurant | | |
| Shakers Lounge | | Ottawa |
| Shamrock Pub Donnelly's | | Peoria |
| Shanghai Express | Chinese | Peoria |
| Shari's | | |
| Shooter Bar & Grill | | Macomb |
| Sidal Inc | | Peoria |
| Sirloin Stockade | Steak | Canton |
| Sizzling India | Indian | |
| Ski's Pizza | Pizzeria | Macomb |
| Sky Harbor Steak House | Steak | Peoria |
| Smoothie King | | Peoria |
| Smoothie King | Juices & Smoothies | East Peoria |
| Snarf & Lucy's | | Chillicothe |
| Snootea Fox | Coffee | Morton |
| Snuffy's Chicken & Fish | Chicken | Peoria |
| Sonny's River City Cafe | | |
| Sonoma Cucina | | |
| South Hill Neighborhood Cafe | | Bloomington |
| Southern Valley 66 | | Downtown Peoria |
| Southfork Lounge | | Downtown Peoria |
| Sports World | | Peru |
| Spring Valley Tastee Freez | Fast Food | |
| St Joseph Cafeteria | | Pekin |
| Staff Management Inc | | Peoria |
| Star Hardee's | Fast Food | El Paso |
| Star Struck Hollywood Grill | | |
| Starbucks Coffee | Coffee | Pekin |
| Starbucks Coffee | Coffee | Peoria |
| Starbucks Coffee | Coffee | Peoria |
| Starbucks Coffee | Coffee | Peoria |
| Starbucks Coffee | Coffee | Peoria |
| Starbucks Coffee | Coffee | Peoria |
| Starbucks Coffee | Coffee | Peru |
| Starbucks Coffee | Coffee | Peru |
| Starlite Restaurant Inc | | |
| Steak & Fries | Steak | |
| Steak & Shake | Casual Dining | Pekin |
| Steak & Shake | Steak | Peoria |
| Steak 'n Shake | Hamburgers | Morton |
| Steak 'n Shake | Hamburgers | |
| Steak N Shake | Casual Dining | Bloomington |
| Steak N Shake | Fast Food | East Peoria |
| Steak N Shake | Fast Food | Peoria |
| Steak N Shake | Fast Food | Peoria |
| Steak N Shake | Fast Food | Peru |
| Steak N' Shake Restaurants | Steak | Bloomington |
| Steak-N-Shake | Steak | Bloomington |
| Steak-N-Shake | Steak | Normal |
| Steak-N-Shake | Steak | Normal |
| Steak-N-Shake Commissary | Steak | Bloomington |
| Steamer's New Orleans Grill | | |
| Sterling Family Restaurant | | Peoria |
| Stockyard Bar & Grill | | |
| Student Prince East Rstrnt | | Macomb |
| Stuffed-Aria | Pizzeria | Macomb |
| Subway | Fast Food | |
| Subway | Fast Food | East Peoria |
| Subway | Fast Food | Eureka |
| Subway | Fast Food | |
| Subway | Fast Food | La Salle |
| Subway | Fast Food | Morton |
| Subway | Fast Food | |
| Subway | Fast Food | Peoria |
| Subway | Fast Food | Peoria |
| Subway | Fast Food | |
| Subway | Fast Food | Watseka |
| Subway | Fast Food | Wenona |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | Bloomington |
| Subway Sandwiches & Salads | Fast Food | Bloomington |
| Subway Sandwiches & Salads | Fast Food | Bloomington |
| Subway Sandwiches & Salads | Fast Food | Bloomington |
| Subway Sandwiches & Salads | Fast Food | Canton |
| Subway Sandwiches & Salads | Fast Food | Chillicothe |
| Subway Sandwiches & Salads | Fast Food | East Peoria |
| Subway Sandwiches & Salads | Fast Food | East Peoria |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | El Paso |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | Macomb |
| Subway Sandwiches & Salads | Fast Food | Macomb |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | Morton |
| Subway Sandwiches & Salads | Fast Food | Morton |
| Subway Sandwiches & Salads | Fast Food | Normal |
| Subway Sandwiches & Salads | Fast Food | Normal |
| Subway Sandwiches & Salads | Fast Food | Oglesby |
| Subway Sandwiches & Salads | Fast Food | Ottawa |
| Subway Sandwiches & Salads | Fast Food | Ottawa |
| Subway Sandwiches & Salads | Fast Food | Pekin |
| Subway Sandwiches & Salads | Fast Food | Pekin |
| Subway Sandwiches & Salads | Fast Food | Pekin |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peoria |
| Subway Sandwiches & Salads | Fast Food | Peru |
| Subway Sandwiches & Salads | Fast Food | Pontiac |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | |
| Subway Sandwiches & Salads | Fast Food | Streator |
| Subway Sandwiches & Salads | Fast Food | Washington |
| Sullivan's Pub | British | |
| Sully's Pub & Cafe | | |
| Sunrise Family Restaurant | | Macomb |
| Sunset Grill & Bar | | Pekin |
| Super Sports | | |
| Sushi Gawa | Japanese | Peoria |
| Sushi Popo Japanese & Chinese Restaurant | Japanese | Peoria |
| Susie's | | Morton |
| Suzies Too | | East Peoria |
| Sweet P's | | Downtown Peoria |
| Szechwan Garden Chinese Restaurant | Chinese | Peoria |
| The Shake Shack | | Canton |
| The Steak Escape | Steak | |
