Explore the Family Name Janeiro
The meaning of Janeiro
Portuguese and Galician: from janeiro (Portuguese) or xaneiro (Galician) ‘January’, a nickname for someone born or baptized in that month, ultimately from Latin Januarius (see Janvier).
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Janeiro in the United States?
Based on data from the Decennial U.S. Census, the popularity of the surname Janeiro has seen a slight increase between 2000 and 2010. In 2000, Janeiro was ranked as the 60,557th most popular surname in the U.S. with a count of 311 individuals bearing the name. By 2010, the rank had improved to 55,962nd with an increased count of 366 individuals, representing a growth rate of approximately 17.68%. Despite this growth, the proportion of the U.S. population carrying the Janeiro surname remained at 0.12 per 100,000 people.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #60,557 | #55,962 | 7.59% |
| Count | 311 | 366 | 17.68% |
| Proportion per 100k | 0.12 | 0.12 | 0% |
Race and Ethnicity of people with the last name Janeiro
Delving into the ethnic identity associated with the Janeiro surname using the Decennial U.S. Census data, it can be noted that the majority identify as White, comprising about 82% in 2000 and slightly decreasing to around 81.97% in 2010. The second largest group are those who identify as Hispanic, accounting for 15.76% in 2000 and increasing to 16.12% in 2010. Individuals identifying as belonging to two or more races made up 1.93% of the Janeiro surname bearers in 2000, but this figure was suppressed in the 2010 results. No data was recorded for those identifying as Asian/Pacific Islander, Black, or American Indian and Alaskan Native.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 82.32% | 81.97% | -0.43% |
| Hispanic | 15.76% | 16.12% | 2.28% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 1.93% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |