Here you can find some statistics about the name Sergio Heffernan. You can find ethical spread of the last name Heffernan, gender usage of the name Sergio, famous people named Sergio Heffernan and you can leave a public message to Sergio Heffernan.
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The lastname Heffernan is an unpopular surname in the USA, the number of the people with the lastname Heffernan is about 6,500.
The name Sergio is used in the USA in the 100% (71,500 c.a.) of time as a male name. In the USA the name Sergio doesn't occur as female name.
At the moment we don't have data about any celebrity or fictional carachter named Sergio Heffernan.