Irby

At the 2020 census, 11,173 Americans bore the surname Irby — 3,146th out of 156,621 surnames on file. That is about one person in 26,800.

By the numbers

People: 11,173
Rank: 3,146th
How common: 1 in 26,800
Per 100,000: 3.7

Who bears the name

How people with the surname Irby described their own race and Hispanic origin at the 2020 census:

White, not Hispanic 49.2%
Black, not Hispanic 42.5%
Two or more races, not Hispanic 4.5%
Hispanic or Latino 3.0%
Asian or Pacific Islander, not Hispanic 0.5%
American Indian or Alaska Native, not Hispanic 0.3%

Also a first name

Irby has been given to 1,130 American babies as a first name since 1896, peaking in 1918. See it as a given name.

Try it on yourself

Source: US Census Bureau, Frequently Occurring Surnames, 2020. The Census describes the file as the surnames borne by 100 or more people; rarer names are not published. The line is not quite exact, and 617 published names come in under it, the smallest at 92 people. Race and Hispanic origin are self-reported. Rates are worked out against the 298.9 million people the file's own figures are calculated on, which is fewer than the census counted in all: the difference is everyone whose surname was too rare to publish.