1. Smith Real Estate, Inc. 516 Sumner Ave, Humboldt, IA 50548 Coordinate: 42.72099,-94.21519 Phone: (515) 332-1071
2. Humboldt Realty 606 Sumner Ave, Humboldt, IA 50548 Coordinate: 42.72097,-94.21644 Phone: (515) 332-1332