The Wilbur Aalfs (Main) LibraryC-aalfs
529 Pierce St.
Sioux City, IA 51101

Monday-Wednesday 9am-8pm
Thursday-Saturday 9am-5pm
Sunday 1-5pm (Sept-May)

With new fiction and nonfiction books, large type, audiobooks, movies, magazines, and music, the Main Library also offers the largest children’s and young adult collections in the system. Local history, genealogy, reference, and outreach services are headquartered here. Skilled librarians will help you find needed information or a good read.

Services include:

  • Wall-to-wall wireless
  • Computer lab
  • Public meeting rooms
  • Study rooms
  • Research services
  • Children's services
  • Government Documents (FDLP)fdlp-emblem-logo-text-color
  • Self checkout
  • Skywalk access

Where we are located on the map

A closer look

529 Pierce St.
4005 Morningside Ave.
2912 Hamilton Blvd.
Sioux City Iowa 51101
Sioux City Iowa 51106
(Lower B, Plaza Professional Center)
Sioux City Iowa 51104
Monday-Wednesday 9am-8pm
Monday-Thursday 10am-6pm
Thursday-Saturday 9am-5pm
Friday-Saturday 10am-5pm
Monday-Friday 10:30am-5:30pm
Sunday (Sept-May) 1pm-5pm