| Zip Code | Primary City | Secondary City | | 18040 | Easton | Easton, Forks Township, Forks Twp, Stockertown Township, Stockrtwn Twp | | 18042 | Easton | Easton, College Hill, Glendon, West Williams Township, Williams Twp | | 18043 | Easton | Palmer | | 18044 | Easton | | | 18045 | Easton | Easton, Tatamy Borough, Palmer, Palmer Township, Palmer Twp, Tatamy Boro |
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