Explore the Family Name Cosio

The meaning of Cosio

1. Spanish: habitational name from Cosio in Cantabria. 2. Italian: habitational name from any of many minor places called with this word, which is probably from the Latin personal name Cosius. Some characteristic forenames: Spanish Jose, Francisco, Juan, Roberto, Armando, Enrique, Jesus, Miguel, Raul, Alberto, Eduardo, Fernando. Italian Dario, Lorenzo, Antonio, Carina, Carmela, Leonardo, Mauro.

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

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

Based on the Decennial U.S. Census data, the surname Cosio has shown a significant increase in popularity between 2000 and 2010. In 2000, it was ranked 14,841 among all surnames in the U.S., but by 2010, it had risen to rank 13,195. This represents an improvement of about 11.09%. Moreover, the number of individuals bearing the Cosio surname grew from 1832 in 2000 to 2316 in 2010, marking a substantial increase of 26.42%. The proportion of people with this surname per 100k population also escalated from 0.68 to 0.79 during this period, indicating a growth of 16.18%.

20002010Change
Rank#14,841#13,19511.09%
Count1,8322,31626.42%
Proportion per 100k0.680.7916.18%

Race and Ethnicity of people with the last name Cosio

The ethnic identity associated with the Cosio surname also underwent changes between 2000 and 2010, as per the Decennial U.S. Census data. The majority of individuals with this surname identify as Hispanic, although the proportion dipped slightly from 84.61% in 2000 to 83.38% in 2010. The percentage identifying as White decreased marginally from 8.84% to 8.46%, while the proportion of those identifying as Asian/Pacific Islander increased significantly from 5.02% to 7.12%. The proportion of people with this surname identifying with two or more races decreased from 0.76% to 0.65%. The percentages for Black and American Indian and Alaskan Native ethnicities were suppressed for privacy reasons in the 2010 census.

20002010Change
Hispanic84.61%83.38%-1.45%
White8.84%8.46%-4.3%
Asian/Pacific Islander5.02%7.12%41.83%
Two or More Races0.76%0.65%-14.47%
Black0.38%0%0%
American Indian and Alaskan Native0.38%0%0%