LAST NAME · 2020 CENSUS
Iwamasa
Iwamasa is the 147,954th most common last name in the United States. In the 2020 Census, 112 people carried it — about 0.0 of every 100,000 people. Most people named Iwamasa are Asian American.
WHO CARRIES THIS NAME · 2020
Asian American87.5%
Multiracial5.4%
Hispanic2.7%
White1.8%
Black1.8%
Native American0.9%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
2000
#140,756
109
2010
#147,253
112
2020
#147,954
112