Explore the Family Name Jansa
The meaning of Jansa
1. Czech (rarely Janša): from a derivative of the personal name Jan 1 ‘John’. Compare Johnson. 2. Slovenian (Janša): from a derivative of the personal name Janez (or its short form Jan 2), an equivalent of John.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Jansa in the United States?
Based on the Decennial U.S. Census, the popularity of the surname 'Jansa' has seen a decline between 2000 to 2010. In 2000, it was ranked 58,849, but by 2010 it had fallen to 68,122, marking a decrease of 15.76%. Over this period, the number of people bearing this surname also dropped from 322 to 289, reflecting a decline of 10.25%. The proportion of individuals with the surname Jansa per 100k population also decreased by 16.67%, from 0.12 in 2000 to 0.1 in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #58,849 | #68,122 | -15.76% |
| Count | 322 | 289 | -10.25% |
| Proportion per 100k | 0.12 | 0.1 | -16.67% |
Race and Ethnicity of people with the last name Jansa
Reviewing the ethnic identity associated with the surname 'Jansa', based on the Decennial U.S. Census, the data shows that almost all individuals identified as White in both years. In 2000, 97.20% identified as White and this marginally increased to 97.58% in 2010, an increase of 0.39%. There were no individuals who identified as Asian/Pacific Islander, Two or more races, Hispanic, Black, or American Indian and Alaskan Native for both the years under review.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.2% | 97.58% | 0.39% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |