There are an estimated 116,867 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|
|Less than four-year||856|
|Four-year and above||2,238|
|BIA (Bureau of Indian Affairs)||160|
|Armed Forces Libraries||239|
* 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 4 in Table 3 of Public Libraries in the United States Survey: Fiscal Year 2016 (April 2018) explains: " Of the 9,057 public libraries in the 50 States and DC, 7,340 were single-outlet libraries and 1,717 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."
** 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 2016 (April 2018)
Figures for academic libraries come from the National Center for Education Statistics (NCES) Academic Library Survey, 2014-2015
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 2017-2018.