Explore the Family Name Rio
The meaning of Rio
1. Spanish (Río), Portuguese, and Italian: from río, rio ‘river, brook’ (from Latin rivus), applied either as a topographic name or as a habitational name from a place called with this word. Compare Del Rio. 2. Breton (mainly Morbihan): variant of Riou, from the old Breton personal name Riou, a diminutive of ri ‘king’; or, in some cases, perhaps an ironic nickname derived from the same word. Compare Rioux. 3. French (southern): variant of Rioux. Some characteristic forenames: Spanish Blanco, Jose, Carlos, Domingo, Manuel, Orlando, Rafael, Raul, Alberto, Alejandro, Ana, Argelio. Italian Vito, Carmela, Concetta, Dino, Fiore, Mauro, Silvio. Portuguese Joao, Joaquim.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Rio in the United States?
Based on the Decennial U.S. Census, the surname Rio has seen a slight dip in its popularity between years 2000 and 2010. The rank of this surname fell from 17,719 to 17,726 over the decade, reflecting a decrease of 0.04%. However, the overall count of people with the surname Rio increased by 8.44% from 1,458 in 2000 to 1,581 in 2010. The proportion of people with the surname Rio remained stable per 100,000 people, showing no change during this ten-year period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #17,719 | #17,726 | -0.04% |
| Count | 1,458 | 1,581 | 8.44% |
| Proportion per 100k | 0.54 | 0.54 | 0% |
Race and Ethnicity of people with the last name Rio
When examining the ethnic identity associated with the surname Rio based on the Decennial U.S. Census, several changes occurred between 2000 and 2010. The percentage of individuals identifying as Asian/Pacific Islander increased by 22.59%, from 6.86% to 8.41%. Meanwhile, those identifying as having two or more ethnicities decreased by 19.48%, from 2.67% to 2.15%. People identifying as white with this surname saw a slight decline, falling 5.69% from 60.49% to 57.05%. Conversely, those identifying as Hispanic increased by 7.83%, rising from 28.74% to 30.99%. There were no individuals with the surname Rio identifying as Black or American Indian and Alaskan Native in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 60.49% | 57.05% | -5.69% |
| Hispanic | 28.74% | 30.99% | 7.83% |
| Asian/Pacific Islander | 6.86% | 8.41% | 22.59% |
| Two or More Races | 2.67% | 2.15% | -19.48% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |