Explore the Family Name Kirwin

The meaning of Kirwin

Irish (Laois): variant of Kirwan. This surname is also found in Lancashire, England.

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

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

Based on the Decennial U.S. Census, the surname Kirwin has seen a slight dip in popularity ranking between 2000 and 2010, moving from 19,411 to 20,099, which represents a 3.54% decrease. However, the actual number of people bearing the surname increased during this period, suggested by a rise in count from 1,290 to 1,329, indicating a growth of 3.02%. The proportion per 100k also decreased by 6.25%, shifting from 0.48 to 0.45.

20002010Change
Rank#19,411#20,099-3.54%
Count1,2901,3293.02%
Proportion per 100k0.480.45-6.25%

Race and Ethnicity of people with the last name Kirwin

Looking at the ethnicity data derived from the Decennial U.S. Census, it appears that there were changes in the distribution of the Kirwin surname by ethnic identity. In 2000, 95.97% identified as White, but this percentage decreased slightly to 94.28% in 2010. There was no Asian/Pacific Islander representation in 2010, compared to 0.78% in 2000. Those identifying as Black or of two or more races saw increases, with Black representation going from 0% to 1.66%, and those identifying as two or more races increasing from 1.09% to 1.58%. Hispanic representation decreased from 1.47% to 1.20%, while the American Indian and Alaskan Native category remained consistent with no representation in both years.

20002010Change
White95.97%94.28%-1.76%
Black0%1.66%0%
Two or More Races1.09%1.58%44.95%
Hispanic1.47%1.2%-18.37%
Asian/Pacific Islander0.78%0%0%
American Indian and Alaskan Native0%0%0%