About the surname
The Longley surname is a demographic rarity, held by a very select segment of the US population. The latest demographic counts confirm that 3,040 Americans have this surname. As a rarer surname, it provides a highly specific and traceable genealogical footprint in modern census data. In terms of population density, this means you can expect 1 in every 109,539 Americans to have the Longley surname. There is virtually no ethnic parity here; the White demographic completely overshadows the Black or African American group by a massive 79% margin.