On St. Patrick’s Day it is often said in the United States that everyone is a little Irish. But how many people of Irish descent are there in the United States? An exact figure is a challenge to determine but the United States Census figures project it to be around 33 million. Here is a Census Bureau report issued in 2004 which describes the results of an ancestry question on the 2000 Census. An article from the website Irish Central compares figures from the 2000 Census to those from the American Community Survey in 2014. It also explains why it is difficult to pin down exact figures regarding ethnicity. If you want to see if there is an Irish ancestor in your background, there are resources at the Mount Prospect Public Library which can help. Look through this list of Irish genealogy books in our collection. Investigate the genealogy online resources Ancestry Library Edition, Heritage Quest, and Find My Past. If you would like some help with this research, please come to the Research Services Desk and set up an appointment with the genealogy librarian or make an appointment online. Whatever your background, wear a little green and have some fun on St. Patrick’s Day!