LAST NAME · 2020 CENSUS
Dennehy
Dennehy is the 16,566th most common last name in the United States. In the 2020 Census, 1,682 people carried it — about 0.6 of every 100,000 people. Most people named Dennehy are White.
WHO CARRIES THIS NAME · 2020
White90.5%
Hispanic4.6%
Multiracial2.2%
Asian American1.2%
Black0.9%
Native American0.5%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#19,233
0
2000
#15,780
1,696
2010
#16,544
1,735
2020
#16,566
1,682