Surname Demperio (Demperio 
) , in all the world, is a very rare cognomen. The family name Demperio is habitual in Northern America, particularly the United States, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Demperio | United States, Canada |
| stephanie lynn demperio Ph.D. University of Virginia 2013 |
|
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