LAST NAME · 2020 CENSUS
Koster
Koster is the 5,808th most common last name in the United States. In the 2020 Census, 5,739 people carried it — about 1.9 of every 100,000 people. Most people named Koster are White.
WHO CARRIES THIS NAME · 2020
White92.8%
Hispanic3.3%
Multiracial2.2%
Asian American0.6%
Native American0.6%
Black0.5%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#6,262
4,974
2000
#5,226
6,137
2010
#5,293
6,580
2020
#5,808
5,739