Visitor Services
Port Isabel Post Office (USPS)
USPS post office for the 78578 mainland side (Port Isabel, Laguna Heights). Backup option when the island office is busy or for tenants living on the mainland side of the causeway.
Plan your visit
- Location
- 103 N Manautou St, Port Isabel, TX, 78578
- Phone
- (956) 943-2212
- Business Type
- ⭐ Local & Independent
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