| Name | Address | City | County | Phone |
| First State Bank Of St. Charles | 300 Woodlawn Ave | O Fallon | St Charles | 636-940-5580 |
| First State Bank Of St. Charles | 1501 Old Hwy 94 S | St Charles | St Charles | 636-940-5543 |
| First State Bank Of St. Charles | 17050 Baxter Rd Ste 100 | Chesterfield | St Louis County | 636-449-3790 |
| First State Bank Of St. Charles | 3461 Technology Dr | Lake St Louis | St Louis County | 636-940-5590 |
