The phone number of the Humboldt Branch-Siouxland Libraries is: 605-363-3361.
The phone number of the Humboldt Public Library is: 515-332-1925.
The phone number of the Dewey-Humboldt Town Library is: 928-632-5049.
The phone number of the Humboldt County Library is: 775-623-6388.
The phone number of the Humboldt Park Branch is: 312-744-2244.
The phone number of the Humboldt County Bookmobile is: 775-623-6388.
The phone number of the Humboldt Arts Council is: 707-442-0278.
The phone number of the Humboldt County Library Bookmobile is: 707-269-1990.
The phone number of the Humboldt County Historical Society is: 707-445-4342.
The phone number of the Humboldt Bay Maritime Museum is: 707-444-9440.
The phone number of the Humboldt Botanical Gardens Foundation is: 707-442-5139.
The phone number of the Siouxland Libraries is: 605-367-8701.
The phone number of the Allen Parish Libraries is: 318-491-4444.