Explore the Family Name Lonczak
The meaning of Lonczak
Polish: variant of Łączak, a topographic name derived from łąka ‘meadow’. It occurs mainly in Dębica and Mielec counties in Podkarpackie Voivodeship.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Lonczak in the United States?
According to the Decennial U.S. Census data, the surname Lonczak has seen a slight decrease in its popularity ranking from 2000 to 2010, moving from 71,372 to 71,478. However, this shift in ranking does not appear to have affected the overall prevalence of the name in the U.S., with the count rising by 7.06% over the same period from 255 to 273 bearers of the surname. The proportion of individuals bearing the surname Lonczak per 100,000 people remained constant at 0.09.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #71,372 | #71,478 | -0.15% |
| Count | 255 | 273 | 7.06% |
| Proportion per 100k | 0.09 | 0.09 | 0% |
Race and Ethnicity of people with the last name Lonczak
In terms of ethnicity as recorded by the Decennial U.S. Census, the vast majority of people with the last name Lonczak identified as White, with an increase in this group from 96.86% in 2000 to 98.90% in 2010. During the same decade, there was a notable decrease in those identifying as Hispanic, down from 2.35% to zero. Other ethnic identities such as Asian/Pacific Islander, Black, and American Indian and Alaskan Native were not reported for this surname in both census years.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 96.86% | 98.9% | 2.11% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Hispanic | 2.35% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |