Explore the Family Name Cozby
The meaning of Cozby
Altered form of English Cosby.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Cozby in the United States?
Based on the Decennial U.S. Census, the popularity of the surname Cozby has seen a slight decrease from 2000 to 2010. In 2000, it was ranked 36,716 in terms of prevalence and had risen slightly to 37,341 by 2010, accounting for a -1.7 percent change. The number of individuals with this surname, however, increased from 574 in 2000 to 597 in 2010, marking a 4.01 percent growth. Despite this increase, the proportion per 100,000 people decreased by 4.76 percent over the decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #36,716 | #37,341 | -1.7% |
| Count | 574 | 597 | 4.01% |
| Proportion per 100k | 0.21 | 0.2 | -4.76% |
Race and Ethnicity of people with the last name Cozby
The ethnic identity associated with the Cozby surname saw minor shifts between 2000 and 2010, according to data from the Decennial U.S. Census. The majority of individuals with this surname identified as White, which increased marginally from 93.73 percent in 2000 to 94.47 percent in 2010. There was a notable decrease in those identifying as Hispanic, dropping from 2.96 percent to 1.51 percent. People identifying with two or more ethnicities also decreased from 1.57 percent to 1.34 percent. Additionally, the 2010 census introduced a new category, Asian/Pacific Islander, which accounted for 1.51 percent of individuals with the Cozby surname. Meanwhile, counts for Black and American Indian and Alaskan Native ethnic identities were either zero or suppressed for privacy throughout the decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 93.73% | 94.47% | 0.79% |
| Asian/Pacific Islander | 0% | 1.51% | 0% |
| Hispanic | 2.96% | 1.51% | -48.99% |
| Two or More Races | 1.57% | 1.34% | -14.65% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 1.22% | 0% | 0% |