There are an estimated 123,627 libraries of all kinds in the United States today.
No single annual survey provides statistics on all types of libraries.
Number of Libraries in the United States
Public Libraries (administrative units)
BIA (Bureau of Indian Affairs)
Armed Forces Libraries
* The number of central buildings is different from the number of public libraries because some public library systems have no central building and some have more than one. Footnote 3 in Table 3 of Public Libraries in the United States Survey: Fiscal Year 2019 explains: " Of the 9,057 public libraries in the 50 States and DC, 7,330 were single-outlet libraries and 1,727 were multiple-outlet libraries. Single-outlet libraries are a central library, bookmobile, or books-by-mail-only outlet. Multiple-outlet libraries have two or more direct service outlets, including some combination of one central library, branch(es), bookmobile(s), and/or books-by-mail-only outlets."
** Per footnote 1 in Table 3A of Public Libraries in the United States Survey: Fiscal Year 2019: A bookmobile is a traveling branch library. It consists of at least one of the following: (1) A truck or van that carries an organized collection of library materials; (2) paid staff; and (3) regularly scheduled hours (bookmobile stops) for being open to the public.
*** Special libraries include Corporate, Medical, Law, Religious, etc.
IFLA (International Federation of Library Associations and Institutions) Library Map of the World is a representative source of basic library statistics and a robust tool providing country-level data and a worldwide comparison of different library performance metrics by region.
The National Center for Education Statistics (NCES) is the primary federal entity for collecting and analyzing data related to education in the U.S. and other nations. NCES is located within the U.S. Department of Education and the Institute of Education Sciences.
The Private School Universe Survey (PSS) is conducted by the National Center for Education Statistics
(NCES) on behalf of the U.S. Department of Education in order to collect basic information on American
private elementary and secondary schools. The target population for PSS is all schools in the United States that are not supported primarily by public funds, provide classroom instruction for one or more of grades kindergarten through 12 (or comparable ungraded levels), and have one or more teachers.