Explore the Family Name Casby

The meaning of Casby

English: variant, with loss of t, of Catesby, a habitational name from Catesby (Northamptonshire).

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

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

Based on the Decennial U.S. Census, the surname Casby has seen a slight increase in popularity over the past decade. In 2000, it was ranked 65,862nd in terms of frequency, but by 2010, it had risen to 65,066th place, indicating a 1.21% change. The number of people with this surname also increased from 281 in 2000 to 305 in 2010, marking an 8.54% growth. However, the proportion of the surname per 100,000 people remained steady at 0.1.

20002010Change
Rank#65,862#65,0661.21%
Count2813058.54%
Proportion per 100k0.10.10%

Race and Ethnicity of people with the last name Casby

When discussing the ethnic identity associated with the surname Casby, the Decennial U.S. Census data shows some interesting shifts. In 2000, approximately 54.45% of those with the surname identified as White, however, by 2010, that figure had decreased to 45.90%. Meanwhile, the percentage who identified as Black rose from 41.64% in 2000 to 49.51% in 2010, suggesting a significant shift in the ethnic distribution. Very few identified as being of Two or more races, with a slight decrease from 1.78% in 2000 to 1.64% in 2010. The data for Asian/Pacific Islander, Hispanic, and American Indian and Alaskan Native were either non-existent or suppressed for privacy (S).

20002010Change
Black41.64%49.51%18.9%
White54.45%45.9%-15.7%
Two or More Races1.78%1.64%-7.87%
Asian/Pacific Islander0%0%0%
Hispanic0%0%0%
American Indian and Alaskan Native0%0%0%