1. American Express Travel Service
104 5th St S, Humboldt, IA 50548
Coordinate: 42.71955,-94.21474
Phone: (515) 332-2632
2. American Express Travel Service
2328 225th St, Humboldt, IA 50548
Coordinate: 42.72257,-94.18256
Phone: (515) 332-2632