Explore the Family Name Postlethwaite
The meaning of Postlethwaite
English (northern, especially Lancashire): variant of Postlethwait. This is the more frequent spelling in Britain.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Postlethwaite in the United States?
Based on the Decennial U.S. Census, the surname Postlethwaite has seen a slight increase in popularity from 2000 to 2010. In 2000, the surname ranked 57,705 in terms of frequency and had a count of 330 people bearing it. Over the course of a decade, the rank improved to 57,234 and the count rose by 7.88% to 356. However, the proportion per 100,000 people remained constant at 0.12.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #57,705 | #57,234 | 0.82% |
| Count | 330 | 356 | 7.88% |
| Proportion per 100k | 0.12 | 0.12 | 0% |
Race and Ethnicity of people with the last name Postlethwaite
In terms of ethnic identity, the majority of individuals with the surname Postlethwaite identified as White, according to the Decennial U.S. Census data. In 2000, this group constituted 96.36% of Postlethwaites, although this figure decreased slightly to 92.13% by 2010. Interestingly, there was an emergence of Postlethwaites identifying as Hispanic (3.37%) and those indicating they belong to two or more races (2.81%) in 2010; these categories were not represented in the 2000 data. On the other hand, those identifying as Black disappeared from the data by 2010, having made up 1.52% of Postlethwaites in 2000. The categories of Asian/Pacific Islander and American Indian and Alaskan Native held no representation in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 96.36% | 92.13% | -4.39% |
| Hispanic | 0% | 3.37% | 0% |
| Two or More Races | 0% | 2.81% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 1.52% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |