LAST NAME · 2020 CENSUS
Fennessy
Fennessy is the 26,837th most common last name in the United States. In the 2020 Census, 956 people carried it — about 0.3 of every 100,000 people. Most people named Fennessy are White.
WHO CARRIES THIS NAME · 2020
White89.5%
Hispanic5.2%
Multiracial3.9%
Asian American0.8%
Native American0.3%
Black0.2%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#32,034
0
2000
#29,261
762
2010
#26,229
932
2020
#26,837
956