Oregonia, Ohio
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Oregonia is an unincorporated community in northwestern Washington Township, Warren County, Ohio, United States,<ref>Template:GNIS</ref> on the east shore of the Little Miami River about five miles northeast of Lebanon and six miles south of Waynesville. The ZIP Code for Oregonia is 45054.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
The first settlement there was around 1802, where there was a mill operated at various times by Nebo Gaunt, Ignatius Brown, and David Brown. Around 1820, it was known as Freeport.<ref>Template:Cite book</ref> The Little Miami Railroad reached the village c. 1845. A post office called Oregon was established in 1846, and the name was changed to Oregonia in 1882.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The post office has since been consolidated with the Lebanon post office.
Today, Oregonia is a stop on the Little Miami Bike Trail which follows the former train route along the Little Miami River. Bikers, hikers, and canoers often stop at the market or a restaurant along the trail which follows the river on the former train route. In October of each year, the "Devils Staircase" motorcycle hill climb is held on a hill just south of the main settlement.