Industry: 8231—Libraries
Establishments primarily engaged in providing library services, including the circulation of books and other materials for reading, study, and reference. Establishments primarily engaged in operating motion picture film libraries are classified in Industry 7829.

Centers for documentationLibraries, printed matter
Circulating librariesRental of books
Lending libraries
Codes Titles Number of US Businesses
8231Libraries24,211
823100Libraries15,488
82310000Libraries15,488
823101Specialized libraries739
82310100Specialized libraries185
82310101Law library288
82310102Medical library175
82310103Religious library91
823102College and military post libraries456
82310200College and military post libraries27
82310201College or university library404
82310202Junior college library6
82310203Military post library19
823103General public libraries6,604
82310300General public libraries1,793
82310301Circulating library26
82310302Government library198
82310303Lending library69
82310304Public library4,518
823104Library services924
82310400Library services616
82310401Book rental42
82310402Documentation center266