The Denu surname
In the 2010 U.S. Census, 277 people carried this name — #70,645 among all U.S. surnames, about 1 in every 1,111,100 people counted. That is up 20% from 231 in 2000.
In France’s civil register
France’s register of deaths holds 121 people named Denu.
1 of them were born outside France. Those born in France came from 10 départements, most often Bas-Rhin.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In print
Denu in American newspapers,
1910–1917.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 18,412 pages in all carry the name.
Nearby in the index
Surnames next to Denu.
When the index is not enough
This page says where Denu is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.