LAST NAME · 2020 CENSUS
Trefethen
Trefethen is the 40,219th most common last name in the United States. In the 2020 Census, 588 people carried it — about 0.2 of every 100,000 people. Most people named Trefethen are White.
WHO CARRIES THIS NAME · 2020
White90.6%
Hispanic4.1%
Multiracial4.1%
Native American0.7%
Asian American0.5%
Black0.0%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#34,535
0
2000
#36,129
586
2010
#38,050
583
2020
#40,219
588