Explore the Family Name Cosmo
The meaning of Cosmo
Italian and Spanish: from the personal name Cosmo, an altered form of Cosma, with the regular masculine ending -o. Some characteristic forenames: Italian Vito, Donato.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Cosmo in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname Cosmo saw a slight increase between 2000 and 2010. The rank of the name improved from 60,887 in 2000 to 60,196 in 2010, marking a growth rate of 1.13%. Additionally, the count, or number of individuals with this surname, rose from 309 to 335 during the same period, indicating an 8.41% increase. Despite these changes, the proportion per 100,000 people remained steady at 0.11.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #60,887 | #60,196 | 1.13% |
| Count | 309 | 335 | 8.41% |
| Proportion per 100k | 0.11 | 0.11 | 0% |
Race and Ethnicity of people with the last name Cosmo
In terms of ethnic identity, the Decennial U.S. Census data reveals some shifts among those with the surname Cosmo between 2000 and 2010. The majority identified as white, although the percentage dropped slightly from 91.59% to 88.96%. Meanwhile, the Hispanic representation among people named Cosmo grew by a significant 43.40%, moving from 5.83% to 8.36%. The percentage of individuals identifying as Black also increased marginally from 1.62% to 1.79%. There were no individuals with the surname Cosmo who identified as Asian/Pacific Islander or American Indian and Alaskan Native in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 91.59% | 88.96% | -2.87% |
| Hispanic | 5.83% | 8.36% | 43.4% |
| Black | 1.62% | 1.79% | 10.49% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |