Here is a screenshot of the Allen County Public Library Genealogy Center website.
Your local library may be sponsored by your town, city, or county or all three. In Mesa, Arizona where I lived for many years, we had an excellent local Mesa Public Library. We also had an excellent county library system, the Maricopa County Public Library System, and a State Library in Phoenix. We also had an extensive system of Family History Centers around the Salt River Valley including the one where I was a volunteer, the Mesa FamilySearch Library.
It was interesting to me that many of the people I met in the Phoenix area who professed to be interested in genealogical research had never visited the Mesa FamilySearch Library and some had not even heard of its existence. There are over 5000 Family History Centers around the world and it is likely that there is one near you. See the FamilySearch.org Get Help menu for a location near you.
Sometimes we tend to judge a library by whether or not it has a particular book or other items we are searching for. But libraries can be surprising in the resources they have in their collections. If you are going to travel to an area where your family lived to do research, take the time to contact a local library in the area and ask about their resources.