View the most partisan surnames in The United States

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

The surname Rosby has its highest incidence in The United States. It can appear as a variant: Rösby. For other potential spellings of this last name click here.

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

The surname is the 717,442^nd most commonly held surname at a global level, held by approximately 1 in 17,905,518 people. It occurs predominantly in The Americas, where 71 percent of Rosby live; 70 percent live in North America and 61 percent live in Anglo-North America. Rosby is also the 315,345^th most widely held forename at a global level It is held by 688 people.

This surname is most frequent in The United States, where it is held by 236 people, or 1 in 1,535,843. In The United States it is most numerous in: California, where 29 percent live, Arkansas, where 12 percent live and Minnesota, where 10 percent live. Other than The United States it occurs in 10 countries. It is also common in Israel, where 13 percent live and Canada, where 12 percent live.

Rosby Family Population Trend ^{historical fluctuation}

The incidence of Rosby has changed through the years. In The United States the number of people bearing the Rosby last name expanded 562 percent between 1880 and 2014 and in England it decreased 12 percent between 1881 and 2014.

Rosby Last Name Statistics ^demography

In The United States those bearing the Rosby surname are 6.77% more likely to be registered with the Democratic Party than the national average, with 60% registered with the party.

The amount Rosby earn in different countries varies somewhat. In United States they earn 12.44% less than the national average, earning $37,781 USD per year and in Canada they earn 21.09% less than the national average, earning $39,206 CAD per year.