| Locality | Post Code |
|---|---|
| Academia, Juniata | 17082 |
| Arch Rock, Juniata | 17059 |
| Beale, Juniata | 17082 |
| Bunkertown, Juniata | 17049 |
| Cocolamus, Juniata | 17014 |
| Cuba Mills, Juniata | 17059 |
| Denholm, Juniata | 17059 |
| Doyles Mills, Juniata | 17058 |
| East Salem, Juniata | 17059 |
| East Waterford, Juniata | 17021 |
| Evendale, Juniata | 17086 |
| Fermanagh, Juniata | 17059 |
| Honey Grove, Juniata | 17035 |
| Jericho Mills, Juniata | 17059 |
| Liverpool, Juniata | 17045 |
| Locust Run, Juniata | 17094 |
| Macedonia, Juniata | 17059 |
| Maze, Juniata | 17094 |
| McAlisterville, Juniata | 17049 |
| McCoysville, Juniata | 17058 |
| McCullochs Mill, Juniata | 17035 |
| Mexico, Juniata | 17056 |
| Mifflin, Juniata | 17058 |
| Mifflintown, Juniata | 17059 |
| Millerstown, Juniata | 17062 |
| Mount Pleasant Mills, Juniata | 17853 |