Explore the Family Name Castaldi

The meaning of Castaldi

Italian: patronymic or plural form of Castaldo. This surname is also found in southern France. Some characteristic forenames: Italian Salvatore, Marco, Alfonse, Carlo, Ciro, Dario, Domenic, Giacinto, Giuseppe, Vito. French Andre, Armand, Ovide.

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

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

Based on the Decennial U.S. Census data, the surname Castaldi has seen a decrease in popularity over a decade. In 2000, it was ranked 25,199th in terms of frequency, with 923 recorded instances. However, by 2010, both its rank and count have slipped to 29,261st and 809 respectively, indicating a negative change of approximately 16.12% in ranking and a 12.35% drop in total counts. The proportion per 100,000 also decreased by 20.59% from 0.34 to 0.27.

	2000	2010	Change
Rank	#25,199	#29,261	-16.12%
Count	923	809	-12.35%
Proportion per 100k	0.34	0.27	-20.59%

Race and Ethnicity of people with the last name Castaldi

In terms of ethnic identity, the Decennial U.S. Census data shows that the majority of individuals with the Castaldi surname identify as White, accounting for 94.80% in 2000 and 93.57% in 2010. There is a slight increase in those identifying as Hispanic, from 4.01% to 4.57% over the decade. Interestingly, there was no record of this surname among Asian/Pacific Islanders and American Indian and Alaskan Natives in either year. In 2010, however, a small percentage (0.62%) identified as Black, a category that had no representation in 2000. The percentage of those identifying with two or more races remained relatively stable, with a negligible decrease from 0.76% to 0.74%.

	2000	2010	Change
White	94.8%	93.57%	-1.3%
Hispanic	4.01%	4.57%	13.97%
Two or More Races	0.76%	0.74%	-2.63%
Black	0%	0.62%	0%
Asian/Pacific Islander	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%