Post Offices List in Warrick County, Indiana:
| Boonville Post Office | 214 W Locust St, Boonville, IN 47601 |
| Chandler Post Office | 211 W Lincoln Ave, Chandler, IN 47610 |
| Elberfeld Post Office | 155 W Main St, Elberfeld, IN 47613 |
| Lynnville Post Office | 216 N Main St, Lynnville, IN 47619 |
| Newburgh Post Office | 5411 State Route 261, Newburgh, IN 47630 |
| Tennyson Post Office | 124 S Main St, Tennyson, IN 47637 |