In 2003, the town of Achill in Co. Mayo was twinned with the city of Cleveland, Ohio. The reason for this twinning was due to the considerable number of Achill emigrants who settled in the city over the last 150 years.
A great example of this connection is seen in the Lavelle Family From Achill to Cleveland website. Lavelle is one of those wonderful rare Irish names and can be tied to a particular part of Ireland. MacLysaght's The Surnames of Ireland outlines that it "is the name of a north Connacht sept, also found in Donegal." Indeed, the website has documented 44 different Lavelle families who settled in Cleveland from Achill.
Estimates vary as to how many Clevelanders have Achill ancestry with anything from 25% to 80% claiming such links. However, I have not been able to find cited documentation to support these numbers.
Do you have Irish ancestors in the Cleveland area and are looking for their place of origin? Chances are, they were from Achill.
 MccLysaght, Edward. The Surnames of Ireland. Dublin: Irish Academic Press. p. 190.
 Author Unknown. History of the Twinning of Cleveland, Ohio and the Parish of Achill, County Mayo, Ireland. Year Unknown http://ead.ohiolink.edu/xtf-ead/view?docId=ead/OCLWHi0286.xml;chunk.id=bioghist_1;brand=default: accessed 6 January 2015.