LAST NAME · 2020 CENSUS
Koscielniak
Koscielniak is the 45,616th most common last name in the United States. In the 2020 Census, 505 people carried it — about 0.2 of every 100,000 people. Most people named Koscielniak are White.
WHO CARRIES THIS NAME · 2020
White95.4%
Hispanic2.0%
Multiracial1.4%
Native American0.8%
Asian American0.4%
Black0.0%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#82,684
0
2000
#40,019
516
2010
#42,640
508
2020
#45,616
505