Guild of One-Name Studies
One-name studies, Genealogy
The 1901 Census of Ireland records a population of 4.45 million people on the whole island. In this census there are only 1005 individuals named Duignan, compared to 56,720 individuals named Murphy, admittedly the most common surname in Ireland. This shows how rare the surname is, even in its homeland.
Of the 1005 individuals named Duignan recorded in the 1901 Census of Ireland almost 70% are living in three counties, viz. Roscommon (338), Leitrim (253), and Meath (113). The name does not occur at all in thirteen of the thirty-two counties.
Today, according to the site Public Profiler (World names), the highest occurrence of the surname is in Ireland, followed - a long way behind - by New Zealand and then the United Kingdom.
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