LAST NAME · 2020 CENSUS
Shannahan
Shannahan is the 43,628th most common last name in the United States. In the 2020 Census, 533 people carried it — about 0.2 of every 100,000 people. Most people named Shannahan are White.
WHO CARRIES THIS NAME · 2020
White92.9%
Multiracial2.8%
Hispanic2.4%
Asian American0.9%
Black0.6%
Native American0.4%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
2000
#38,524
540
2010
#42,237
514
2020
#43,628
533