{{Short description|none}} All except one (New York) are free and deal with a state of the United States.
{{Expand list|date=December 2018}}
{|class="wikitable sortable" |- ! State !! Name !! Sponsored by |- | Alabama || Encyclopedia of Alabama || Alabama Humanities Foundation |- | Arkansas || Encyclopedia of Arkansas || Central Arkansas Library System |- id="Colorado Encyclopedia" | Colorado || [https://coloradoencyclopedia.org/ Colorado Encyclopedia] || History Colorado |- id="Encyclopedia of Connecticut Biography" | Connecticut || [https://www.worldcat.org/oclc/656599711 Encyclopedia of Connecticut Biography] (10 vols, 1917–23) |- id="Floripedia" | Florida || [https://fcit.usf.edu/florida/docs/docs.htm Floripedia: A Florida Encyclopedia] (a collection of links to original sources, not an encyclopedia) || Florida Center for Instructional Technology, University of South Florida |- | Georgia || ''New Georgia Encyclopedia'' || Georgia Humanities and the University of Georgia Press |- | Illinois || [http://www.encyclopedia.chicagohistory.org/ Encyclopedia of Chicago]|| Chicago History Museum |- |Indiana |[https://indyencyclopedia.org Encyclopedia of Indianapolis] |Indianapolis Public Library |- id="Kansapedia" | Kansas || [https://www.kshs.org/kansapedia/kansapedia/19539 ''Kansapedia''] (not to be confused with ''KansasPedia.com'') || Kansas Historical Society (a state agency) |- | Kentucky || [http://www.kyenc.org The Kentucky Enciclopedia] {{Webarchive|url=https://web.archive.org/web/20200809231529/http://kyenc.org/ |date=2020-08-09 }} || University Press of Kentucky |- id="Encyclopedia of Louisville" | Kentucky || [https://books.google.com/books?id=pXbYITw4ZesC Encyclopedia of Louisville] || University Press of Kentucky |- id="64 Parishes" | Louisiana || [https://64parishes.org/encyclopedia 64 Parishes] (formerly ''Know Louisiana'') ||Louisiana Endowment for the Humanities |- id="Maine: An Encyclopedia" | Maine || [http://maineanencyclopedia.com/ Maine: An Encyclopedia] || Publius Research |- | Massachusetts || [https://www.worldcat.org/oclc/463608436 Encyclopedia of Massachusetts, biographical—genealogical] (1916)|| |- | Minnesota || MNopedia || Minnesota Historical Society |- id="Mississippi Encyclopedia" | Mississippi || [https://mississippiencyclopedia.org Mississippi Encyclopedia] || Mississippi Humanities Council <!--- no longer online |- id="Nebraskapedia" | Nebraska || [http://nebraskapedia.com/index.html Nebraskapedia] || Pedianetwork Inc., a for-profit company out to provide many local "pedias". Very much a work in progress, without much content. ---> |- |Missouri |[https://missouriencyclopedia.org/ Missouri Encyclopedia] |State Historical Society of Missouri |- id="Online Nevada Encyclopedia" | Nevada || [http://www.onlinenevada.org Online Nevada Encyclopedia] || Nevada Humanities |- | New York || [https://go.gale.com/ps/aboutJournal.do?contentModuleId=AONE&resultClickType=AboutThisPublication&actionString=DO_DISPLAY_ABOUT_PAGE&searchType=BasicSearchForm&docId=GALE%7C2EJN&userGroupName=wikipedia&inPS=true&rcDocId=GALE%7CA194195429&prodId=AONE&pubDate=120050101 Encyclopedia of New York State] || Not free; requires subscription. Available through Gale. |- id="NCPedia" | North Carolina || [http://ncpedia.org NCPedia] || State Library of North Carolina |- | Ohio || [https://web.archive.org/web/20231227183636/https://ohiohistorycentral.org/w/Welcome_To_Ohio_History_Central Ohio History Central] (archived location) || Ohio History Connection |- | Oklahoma || [https://www.okhistory.org/publications/encyclopediaonline.php The Encyclopedia of Oklahoma History and Culture] || Oklahoma Historical Society |- | Oregon || The Oregon Encyclopedia || Portland State University and the Oregon Historical Society |- id="Encyclopedia of Greater Philadelphia" | Pennsylvania || [https://philadelphiaencyclopedia.org Encyclopedia of Greater Philadelphia] || Mid-Atlantic Regional Center for the Humanities |- id="South Carolina Encyclopedia" | South Carolina || [http://www.scencyclopedia.org/sce/ South Carolina Encyclopedia] || "A joint project of South Carolina Humanities, the University of South Carolina Press, the USC Libraries, the [https://dornsife.usc.edu/digitalhumanities/ USC Center for Digital Humanities], the [https://www.sc.edu/study/colleges_schools/artsandsciences/index.php USC College of Arts & Sciences], the [http://www.artsandsciences.sc.edu/iss/ USC Institute for Southern Studies], the [http://www.statelibrary.sc.gov South Carolina State Library], and many other organizations." |- | Tennessee || Tennessee Encyclopedia || Tennessee Historical Society – University of Tennessee Press |- | Texas || Handbook of Texas || Texas State Historical Association |- | Virginia || Encyclopedia Virginia || Virginia Foundation for the Humanities and Library of Virginia (formerly the Virginia State Library) |- | Virginia || [https://archive.org/search.php?query=creator%3A%22Tyler%2C%20Lyon%20Gardiner%2C%201853-1935%22%20encyclopedia Encyclopedia of Virginia Biography] (1915) ||Arranged by time period and office held, not alphabetically. |- | Washington || HistoryLink || HistoryLink, 4Culture, King County, Washington, Seattle Office of Arts & Culture, The Norcliffe Foundation |- id="e-WV" | West Virginia || [https://www.wvencyclopedia.org e-WV: The West Virginia Encyclopedia] || West Virginia Humanities Council |- id="Encyclopedia of Wyoming" | Wyoming || [https://www.wyohistory.org/encyclopedia Encyclopedia of Wyoming] || Wyoming State Historical Society |- |}
==See also== * List of online encyclopedias
{{Lists of encyclopedias}}
Category:American online encyclopedias Category:Encyclopedias of U.S. states Category:American encyclopedias Online state encyclopedias Online state encyclopedias Online state encyclopedias Category:Wikipedia resources for researchers