|Established||March 14, 1853|
|Location||Cincinnati and Hamilton County, Ohio|
PUBLIC LIBRARY OF CINCINNATI AND HAMILTON COUNTY Latitude and Longitude:
|Legal deposit||Selective federal depository |
|Access and use|
|Circulation||18,900,000[ citation needed]|
|Members||600,000 active |
The Public Library of Cincinnati and Hamilton County (PLCH) is a public library system in the United States. In addition to its main library location in downtown Cincinnati, Ohio, PLCH operates 41 regional and branch locations throughout Hamilton County.
As of 2012 [update], the PLCH's collection holds about nine and a half million volumes, making it the 13th-largest library in the U.S.  In 2008, PLCH had an annual circulation of over fifteen million items.  The downtown location alone circulates over four million items annually, the most of any single library location in the country, and has an area of 542,527 square feet (50,402.4 m2).   Hennen's American Public Library Ratings 2008 places PLCH tenth among libraries that serve populations of over 500,000.  PLCH's various locations had 5,661,940 visitors in 2008. 
Among PLCH's collections are books, audiobooks, downloadable digital audio and e-books, magazines, newspapers, CDs, videos, DVDs, CD-ROMs, sheet music, slides, microfilm, microfiche, and Braille. It offers free internet and free Wi-Fi, in addition to over 15,500 free programs each year for patrons. In 2005, its staff answered 1.7 million reference questions by phone, fax, e-mail, post, and in person. The Main Branch is a selective federal depository library. 
Special needs services provided by PLCH include "talking books" and Braille to the visually impaired, blind, and physically handicapped in 33 Ohio counties; its outreach services include books-by-mail, foreign language materials and bilingual programs, and passport application; its literacy services include GED classes and GED practice testing.
PLCH holds one of the largest genealogical collections in the United States. Online postings include Cincinnati and Norwood, Ohio city directories, Sanborn maps, and yearbooks as well as books relating to local history.
In 2015, the Library opened its first MakerSpace at the Main Library downtown. Later that year, branch MakerSpaces also opened at the Reading and St. Bernard locations.
PLCH traces its roots to a subscription library that began in 1802. On March 14, 1853, it became the Cincinnati Public Library.  Since its founding, the library has occupied several locations, including its current location at Eighth Street and Vine Street. 
Cincinnati's public library was among the first to try providing service to patrons on Sunday. Starting in March 1871, the reading rooms at the main library were open from 8am to 10pm. Sunday library service was so popular that, according to library director William F. Poole, "often during the afternoon and evenings every seat has been occupied". As a result of Cincinnati's experiment, the public libraries in New York, Philadelphia, and St. Louis adopted Sunday hours as well. Poole reported that "many of that class of young men who [had previously] strolled about the streets on Sunday, and spent the day in a less profitable manner, [began] habitually frequenting the rooms and spending a portion of the day in reading." 
For many years[ when?], the library used the Computerized Information Network for Cincinnati and Hamilton County (CINCH) as a system-wide library catalog which connected each branch through computer terminals.  Users at home accessed the database via TELNET. In 2005, the system was replaced with an integrated library system (ILS) purchased from library automation vendor Sirsi, now SirsiDynix.
Beginning in 2001, budget cuts from the State of Ohio drastically reduced funding for PLCH. In July 2002, the Board of Trustees voted to close branch locations in Deer Park, Elmwood Place, Greenhills and Mount Healthy. The board later backed off on the branch closing plan after a strong negative response from citizens in the affected neighborhoods. 
In 2005, a state budget plan that cut spending on libraries a further five percent was passed in the Ohio House of Representatives, after being proposed by Ohio governor Bob Taft. The budget prompted the library to distribute flyers and hold rallies in Downtown Cincinnati, calling on the state to repeal the proposed cuts.  The cuts resulted in a periodic hiring freeze, reductions in hours, branch and department closings, and the layoff of approximately forty librarians. Librarians responded by voting to join the Service Employees International Union (SEIU) Local 1199 in 2006. 
After nine months of contentious negotiations over a union contract, the parties (SEIU and the library administration) resorted to a hearing in front of a third-party neutral negotiator, who drew up a labor contract. Librarians voted 45–1 to approve the contract. The library's Board of Trustees subsequently voted the contract down by a 7–0 vote, citing concerns over 'fair share' proposals built into the contract. After further negotiations between SEIU and attorneys for the library, the Board approved a union contract that did not include fair share. See the Agency shop article for clarification.
In 2007, the library began implementing a reorganization plan, known as ML/21 (Main Library for the 21st Century), that will lead to the creation of a Technology Center, Teen Center, a Popular Library, and a Local History and Genealogy Department. The plan also calls for the disbanding of subject departments in Art and Music, Literature and Languages, History and Genealogy, Rare Books and Special Collections, Science and Technology, Government and Business, Education and Religion, Fiction and Young Adults, and Films and Recordings. The latter two departments will comprise the new Popular Library. The History and Genealogy Department will be merged with Rare Books and Special Collections to create the Local History and Genealogy department. The other subject departments will comprise the Information and Reference department. Approximately 24 professional positions (those holding a Master of Library and Information Science) are slated for elimination through attrition and reassignment.  
From July 2007 to mid 2008, the library joined with Kirtas Technologies, Inc. to digitize rare books and make them available via Amazon.com. The library no longer participates in the program, but profits from sales of the digitized books were shared with the library. Other institutions involved in the plan included the University of Maine, Emory University in Atlanta, and the Toronto Public Library in Ontario.  Digitized material, including books, maps, yearbooks, and city directories, are available via the Public Library of Cincinnati and Hamilton County's Virtual Library.
Fifteen individuals have served as Directors of the Public Library of Cincinnati and Hamilton County: 
- John D. Caldwell (1855–1857)
- N. Peabody Poor (1857–1866)
- Lewis Freeman (1866–1869)
- William Frederick Poole (1869–1873)
- Thomas Vickers (1874–1879)
- Chester W. Merrill (1880–1886)
- Albert W. Whelpley (1886–1900)
- Nathaniel D.C. Hodges (1900–1924)
- Chalmers Hadley (1924–1945)
- Carl Vitz (1946–1955)
- Ernest I. Miller (1955–1971)
- James R. Hunt (1971–1991)
- Robert D. Stonestreet (1991–1998)
- Kimber L. Fender (1999–2018)
- Paula Brehm-Heeger (2018-present) 
PLCH has 40 branch locations, in addition to the main library downtown:
- Anderson Branch
- Avondale Branch*
- Blue Ash Branch (formerly the Sycamore Branch)
- Bond Hill Branch
- Cheviot Branch
- Clifton Branch
- College Hill Branch (formerly the Northern Hills Branch)
- Corryville Branch* (formerly the North Cincinnati Branch)
- Covedale Branch
- Deer Park Branch
- Delhi Township Branch
- Elmwood Place Branch
- Forest Park Branch (formerly the Parkdale Branch)
- Green Township Regional Branch
- Greenhills Branch
- Groesbeck Branch
- Harrison Branch
- Hyde Park Branch*
- Loveland Branch
- Madeira Branch (formerly the Madeira– Indian Hill Regional Branch)
- Madisonville Branch
- Mariemont Branch
- Miami Township Branch (originally the Cleves Branch)
- Monfort Heights Branch (formerly the West Fork Branch)
- Mt. Healthy Branch
- Mt. Washington Branch
- North Central Branch
- Northside Branch* (formerly the Cumminsville Branch)
- Norwood Branch*
- Oakley Branch
- Pleasant Ridge Branch
- Price Hill Branch*
- Reading Branch (formerly the Valley Branch)
- St. Bernard Branch
- Sharonville Branch
- Symmes Township Regional Branch
- Walnut Hills Branch*
- West End Branch (formerly the Lincoln Park Branch)
- Westwood Branch
- Wyoming Branch (formerly the Bonham Branch)
- John Reily, one of the original subscribers
- Fleischman, John (November 2002). Free & Public: One Hundred and Fifty Years at the Public Library of Cincinnati & Hamilton County, 1853–2003. Wilmington, Ohio: Orange Frazer Press. ISBN 1-882203-91-7.
- "The Public Library of Cincinnati & Hamilton County 2008 Report to the Community" (PDF). Cincinnati, Ohio: Public Library of Cincinnati and Hamilton County. Retrieved June 25, 2009.
- "Ohio". GPO Federal Library Directory. United States Government Printing Office. Retrieved September 23, 2008.
- "The Nation's Largest Libraries: A Listing By Volumes Held". Retrieved February 22, 2017.
- Brogan, Jeff (November 26, 2008). "Downtown Library Rated The Country's Busiest". WCPO-TV. E. W. Scripps Company. Retrieved November 26, 2008.
- "About the Building". The Public Library of Cincinnati and Hamilton County. Retrieved 27 May 2015.
- "HAPLR 100 for 1999 to 2008". Hennen's American Public Library Ratings. Racine, Wisconsin: haplr-index.com. October 7, 2008. Retrieved November 26, 2008.
- Seavey, Charles (2001). " Cincinnati Public Library Archived January 15, 2002, at Archive.is." Images From The 1876 Report. Columbia, MO: University of Missouri. Accessed July 8, 2005.
- "Library opening on Sunday; results in Cincinnati". New York Times. 1 July 1872. p. 5.
- Felix Winternitz & Sacha DeVroomen Bellman (2007). Insiders' Guide to Cincinnati. Globe Pequot. p. 370. Retrieved 2013-05-08.
- Korte, Gregory (August 10, 2002). "Library Didn't See Squeeze Coming". The Cincinnati Enquirer. p. A1.
- "Cincinnatians Speak Out against State Budget Cuts". American Libraries Online. American Library Association. April 22, 2005. Retrieved June 28, 2005.
- "Librarians Vote in Favor of Forming Labor Union". The Cincinnati Enquirer. January 31, 2006. p. 2B.
- “Board Approves Moving Forward on Main Library for the 21st century Plan” 2006-11-30 Accessed March 16, 2007.
- Kurtzman, Lori (December 5, 2006). "Main Library Ready for New Chapter with Service Overhaul". The Cincinnati Enquirer. p. C3.
- Doloff, Aimee (July 7, 2007). "UM Reaches Deal to Make Digital Copies of Rare Books". Bangor Daily News.
- Cincinnati Public Library announces new director
- Andry, Al (October 11, 1999). "New life for historic libraries". The Cincinnati Post. E. W. Scripps Company. Archived from the original on September 30, 2007. Retrieved November 12, 2007.
|Wikimedia Commons has media related to Public Library of Cincinnati and Hamilton County.|
- The Public Library of Cincinnati and Hamilton County
- PLCH online catalog
- Kidspace – library website for children
- Teenspace – library website for teenagers
- Friends of the Public Library
- Changes at Cincinnati's New Main
- Rearranging the books Citybeat article on library reorganization plan
- Ml/21 Library's webpage on library reorganization plan
- Cincinnati Panorama of 1848 The library holds a rare daguerreotype of the buildings along the Ohio River in 1848.