I didn't think Perry Como's real name was "Perry Como," but sure enough, it was. He and his family were living in Washington County, Pennsylvania in 1920 as shown in the image to the right. The complete image indicates the family immigrated in 1910 and that Como's older siblings were born in Italy.
The 1920 United States Federal Census can be searched for your relative at Ancestry.com. Those who don't have a subscription can read our free-trial suggestions here.