Allentown, Ohio From Wikipedia, the free encyclopedia Unincorporated community in Ohio, U.S. Allentown is an unincorporated community in Allen County, in the U.S. state of Ohio.[1] Allentown was platted in 1835.[2] A post office called Allentown was established in 1848, and remained in operation until 1904.[3] References ↑ U.S. Geological Survey Geographic Names Information System: Allentown, Ohio ↑ History of Allen County, Ohio: Containing a History of the County, Its Townships, Towns, Villages, Schools, Churches, Industries, Etc. Warner, Beers & Company. 1885. p. 432. ↑ "Allen County". Jim Forte Postal History. Retrieved January 10, 2016. vteMunicipalities and communities of Allen County, Ohio, United StatesCounty seat: LimaCities Delphos‡ Lima Map of Ohio highlighting Allen CountyVillages Beaverdam Bluffton‡ Cairo Elida Harrod Lafayette Spencerville Townships Amanda American Auglaize Bath Jackson Marion Monroe Perry Richland Shawnee Spencer Sugar Creek CDPs Fort Shawnee Gomer Westminster Unincorporatedcommunities Allentown Conant Hume Kemp Landeck Maysville‡ Rockport Scotts Crossing South Warsaw Southworth West Newton Footnotes‡This populated place also has portions in an adjacent county or counties Ohio portal United States portal 40°45′21″N 84°11′36″W / 40.75583°N 84.19333°W / 40.75583; -84.19333 This Allen County, Ohio state location article is a stub. You can help Wikipedia by adding missing information.vte Related Articles~TimelinesTop QsFact Checks