| Zip Code | Primary City | Secondary City | | 08610 | Trenton | Hamilton Twp, Hamilton Township, Hamilton | | 08611 | Trenton | Hamilton Twp, Hamilton Township, Hamilton | | 08619 | Trenton | Hamilton Twp, Hamilton Township, Mercerville, Hamilton | | 08620 | Trenton | Hamilton Twp, Hamilton Township, Groveville, Hamilton | | 08629 | Trenton | Hamilton Twp, Hamilton Township, Hamilton | | 08690 | Trenton | Hamilton Twp, Hamilton Township, Hamilton Square, Hamilton, Hamilton Sq | | 08691 | Trenton | Hamilton Twp, Hamilton Township, Uppr Free Twp, Robbinsville, Hamilton |
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