Post Offices List in Jay County, Indiana:
| Bryant Post Office | 104 E Main St, Bryant, IN 47326 |
| Dunkirk Post Office | 123 W Commerce St, Dunkirk, IN 47336 |
| Pennville Post Office | 125 S Union St, Pennville, IN 47369 |
| Portland Post Office | 119 S Meridian St, Portland, IN 47371 |
| Redkey Post Office | 133 W High St, Redkey, IN 47373 |