Explore the Family Name Ciriaco

The meaning of Ciriaco

Italian and Spanish: from the personal name Ciriaco, from Latin Cyriacus (see Cyriac and Cyr), a Christian saint’s name. This surname is also found in the Philippines. See also Italian Chirico.

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

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

According to the Decennial U.S. Census data, the popularity of the surname Ciriaco has notably increased between 2000 and 2010. In 2000, it ranked 39,617 in terms of prevalence, however, by 2010 it had jumped to 28,158, an increase of 28.92%. The number of people with this surname also increased from 522 to 850 over the same decade, representing a substantial 62.84% boost. This means the proportion of individuals named Ciriaco per 100,000 people grew by 52.63%, rising from 0.19 in 2000 to 0.29 in 2010.

	2000	2010	Change
Rank	#39,617	#28,158	28.92%
Count	522	850	62.84%
Proportion per 100k	0.19	0.29	52.63%

Race and Ethnicity of people with the last name Ciriaco

In terms of ethnicity, the Decennial U.S. Census data shows that the majority of those bearing the Ciriaco surname identify as Hispanic. The percentage of Hispanic Ciriacos surged from 70.31% in 2000 to 77.18% in 2010. Over the same period, there was a decrease in the number of White Ciriacos, falling from 18.58% to 13.06%. There was a small increase in the number of Asian/Pacific Islanders from 8.81% to 9.18%. Unfortunately, for the categories "Two or more races" and "Black", the data was suppressed for privacy reasons. There were no reported American Indian and Alaskan Native individuals with the Ciriaco surname in either 2000 or 2010.

	2000	2010	Change
Hispanic	70.31%	77.18%	9.77%
White	18.58%	13.06%	-29.71%
Asian/Pacific Islander	8.81%	9.18%	4.2%
Two or More Races	1.15%	0%	0%
Black	1.15%	0%	0%
American Indian and Alaskan Native	0%	0%	0%