Koster

5,739 people in the United States were counted with the surname Koster in the 2020 census, making it the 5,808th most common in the country. That is about one person in 52,100.

By the numbers

People: 5,739
Rank: 5,808th
How common: 1 in 52,100
Per 100,000: 1.9

Who bears the name

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

White, not Hispanic 92.8%
Hispanic or Latino 3.3%
Two or more races, not Hispanic 2.3%
Asian or Pacific Islander, not Hispanic 0.6%
American Indian or Alaska Native, not Hispanic 0.6%
Black, not Hispanic 0.5%

Notable people called Koster

Henry Koster (1905–1988)American film director
Adrie Koster (born 1954)Dutch footballer and manager
Anouska Koster (born 1993)Dutch cyclist
Bärbel Köster (1957–2025)East German canoe racer
Julian Köster (born 2000)German handball player
Maureen Koster (born 1992)Dutch middle-distance runner

People named Koster with articles in the most Wikipedia languages. Data from Wikidata (CC0).

Surnames like Koster

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.