View the highest/lowest earning families in The United States

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

The surname Rolby has its highest incidence in The United States. It can be rendered in the variant forms:. For other possible spellings of this name click here.

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

Rolby is the 4,034,050^th most commonly held last name on earth, held by approximately 1 in 303,647,746 people. The last name Rolby is primarily found in The Americas, where 75 percent of Rolby are found; 75 percent are found in North America and 75 percent are found in Anglo-North America. Rolby is also the 1,951,561^st most frequently occurring first name world-wide, borne by 29 people.

The surname is most frequently used in The United States, where it is borne by 23 people, or 1 in 15,759,084. In The United States it is most numerous in: Missouri, where 74 percent reside and Washington, where 4 percent reside. Beside The United States it is found in one country. It is also common in Papua New Guinea, where 4 percent reside.

Rolby Family Population Trend ^{historical fluctuation}

The frequency of Rolby has changed over time. In The United States the number of people bearing the Rolby surname rose 575 percent between 1880 and 2014.

Rolby Last Name Statistics ^demography

Rolby earn a lot more than the average income. In United States they earn 40.21% more than the national average, earning $60,500 USD per year.