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.
|Public Libraries (administrative units)||9,057|
|BIA (Bureau of Indian Affairs)||160|
|Armed Forces Libraries||225|
* 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.
Figures for public libraries come from the supplementary tables of the Institute of Museum and Library Services (IMLS) Public Libraries in the United States Survey: Fiscal Year 2019 (April 2021)
Figures for academic libraries come from the National Center for Education Statistics (NCES) Academic Library Survey, 2018-2019
Figures for school libraries come from various surveys conducted by the National Center for Education Statistics (NCES):
Figures for special libraries, armed forces libraries, and government libraries come from the American Library Directory, 2022-2023 (75th edition).