Explore the Family Name Isaak

The meaning of Isaak

1. Jewish: variant of Isaac. 2. German: from the personal name Isaak, German form of Isaac.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Isaak in the United States?

The surname Isaak saw a rise in popularity from 2000 to 2010, according to data compiled from the Decennial U.S. Census. In 2000, the surname ranked 20,247th in terms of prevalence, with 1,223 individuals bearing the name. By 2010, it had climbed to a rank of 19,296 with 1,403 individuals identified, reflecting a growth rate of approximately 14.72%. The proportion of individuals with this surname per 100,000 also increased slightly from 0.45 to 0.48 during this ten-year period.

	2000	2010	Change
Rank	#20,247	#19,296	4.7%
Count	1,223	1,403	14.72%
Proportion per 100k	0.45	0.48	6.67%

Race and Ethnicity of people with the last name Isaak

As for ethnic identity, the census data revealed a diverse spread among those carrying the Isaak name. While the vast majority of those surveyed identified as White (86.32% in 2010, down from 93.05% in 2000), there was significant growth in other categories. The proportion of Hispanic individuals with this surname doubled from 2.21% to 4.42%, while those identifying as Black increased dramatically by 334.96% to reach 5.35% in 2010. A smaller but still notable increase was found among individuals identifying as Asian/Pacific Islander and American Indian and Alaskan Native, which rose by 34.44% and 43.08% respectively. In contrast, those identifying with two or more races decreased slightly by 9.18%. This data underscores the diverse ethnic identities associated with the surname Isaak, based on the findings of the Decennial U.S. Census.

	2000	2010	Change
White	93.05%	86.32%	-7.23%
Black	1.23%	5.35%	334.96%
Hispanic	2.21%	4.42%	100%
Two or More Races	1.96%	1.78%	-9.18%
Asian/Pacific Islander	0.9%	1.21%	34.44%
American Indian and Alaskan Native	0.65%	0.93%	43.08%