View the most religious surnames in Ireland

Where Does The Last Name Keernan Come From? ^{nationality or country of origin}

The last name Keernan is borne by more people in The United States than any other country/territory. It may appear in the variant forms:. For other possible spellings of this name click here.

How Common Is The Last Name Keernan? ^{popularity and diffusion}

The last name is the 14,316,765^th most prevalent family name on a worldwide basis, borne by around 1 in 2,147,483,647 people. This last name occurs mostly in The Americas, where 100 percent of Keernan reside; 100 percent reside in North America and 100 percent reside in Anglo-North America. Keernan is also the 5,493,085^th most commonly held first name at a global level, held by 5 people.

This last name is most frequent in The United States, where it is carried by 1 people, or 1 in 362,458,933. In The United States it is primarily found in: California, where 100 percent live.

Keernan Family Population Trend ^{historical fluctuation}

The frequency of Keernan has changed through the years. In The United States the number of people bearing the Keernan surname declined 98 percent between 1880 and 2014.

Keernan Last Name Statistics ^demography

The religious adherence of those bearing the last name is principally Catholic (100%) in Ireland.