View the most partisan surnames in The United States

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

Jeffko has its highest incidence in The United States. It may occur as:. Click here to see other possible spellings of Jeffko.

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

It is the 4,427,875^th most frequently used last name on a worldwide basis. It is borne by approximately 1 in 364,377,296 people. The surname is mostly found in The Americas, where 100 percent of Jeffko are found; 100 percent are found in North America and 100 percent are found in Anglo-North America.

This last name is most commonly occurring in The United States, where it is borne by 20 people, or 1 in 18,122,947. In The United States Jeffko is most frequent in: Connecticut, where 35 percent reside, Massachusetts, where 35 percent reside and Washington, where 30 percent reside.

Jeffko Last Name Statistics ^demography

In The United States Jeffko are 18.2% more likely to be registered with the Democratic Party than the national average, with 71.43% registered to vote for the party.

Jeffko earn notably less less than the average income. In United States they earn 21.93% less than the national average, earning $33,688 USD per year.