Explore the Family Name Rosasco

The meaning of Rosasco

Italian: 1. habitational name from any of several places in northwestern Italy named Rosasco, for example in Pavia province. 2. possibly in some instances a variant of Resasco, a habitational name for someone from Rezzo in Imperia province.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Rosasco has seen slight changes between 2000 and 2010. In 2000, it ranked 47,939 in terms of popularity and slipped to 50,467 in 2010, marking a decrease of 5.27%. The count of people with this surname remained relatively stable with only a slight decrease from 415 in 2000 to 414 in 2010, a marginal drop of 0.24%. The proportion per 100k also saw a minor dip of 6.67%, going down from 0.15 in 2000 to 0.14 in 2010.

20002010Change
Rank#47,939#50,467-5.27%
Count415414-0.24%
Proportion per 100k0.150.14-6.67%

Race and Ethnicity of people with the last name Rosasco

When examining the ethnic identity associated with the surname Rosasco based on data from the Decennial U.S. Census, several shifts occurred between 2000 and 2010. Those identifying as White made up the majority, though their percentage decreased from 90.84% in 2000 to 84.3% in 2010, a decline of 7.2%. On the other hand, the percentage of those identifying as Hispanic saw a significant increase from 6.99% in 2000 to 13.53% in 2010, showing a growth of 93.56%. There were also minimal changes in the representation of other ethnic identities. For instance, there was a small emergence of Asian/Pacific Islander representation at 1.21% in 2010 from none in 2000, while the percentage of those identifying with two or more races went from 1.45% in 2000 to none in 2010. The proportions for Black and American Indian and Alaskan Native remained stagnant at 0% during both census years.

20002010Change
White90.84%84.3%-7.2%
Hispanic6.99%13.53%93.56%
Asian/Pacific Islander0%1.21%0%
Two or More Races1.45%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%