| Locality | Post Code |
|---|---|
| Northern Oaks, Tazewell | 61535 |
| Ossami Lake, Tazewell | 61550 |
| Pekin, Tazewell | 61554 |
| Pekin Heights, Tazewell | 61554 |
| Pekin Mall, Tazewell | 61554 |
| Peoria, Tazewell | 61611 |
| Robein, Tazewell | 61611 |
| Schaeferville, Tazewell | 61554 |
| South Pekin, Tazewell | 61564 |
| Towne Oaks, Tazewell | 61535 |
| Tremont, Tazewell | 61568 |
| Washington, Tazewell | 61571 |
| Whispering Oaks, Tazewell | 61535 |