Explore the Family Name Kolthoff
The meaning of Kolthoff
North German and Dutch: variant of Kolthof and Kalthoff ‘cold farm’, a habitational name from any of several farms so named in the border area of the northeastern Netherlands and Germany, possibly indicating a farm which has not been in use for awhile, or referring to the cold, heavy, wet soil. Some characteristic forenames: Dutch Marinus.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kolthoff in the United States?
Based on the Decennial U.S. Census data, the surname Kolthoff showed a slight decrease in popularity from 2000 to 2010. In 2000, it ranked 66,274 and slipped to 67,943 by 2010, which is a decline of 2.52%. Despite this fall in rank, the actual count of people bearing the surname Kolthoff increased from 279 in 2000 to 290 in 2010, a rise of 3.94%. The proportion per 100,000 people remained constant at 0.1 during this decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #66,274 | #67,943 | -2.52% |
| Count | 279 | 290 | 3.94% |
| Proportion per 100k | 0.1 | 0.1 | 0% |
Race and Ethnicity of people with the last name Kolthoff
On the other hand, the ethnic identity associated with the surname Kolthoff saw some notable shifts over the same period. According to the Decennial U.S. Census data, the majority of individuals with the surname Kolthoff identified as White, although there was a minor decrease from 94.62% in 2000 to 92.07% in 2010. There were no recorded instances of Kolthoff being associated with Asian/Pacific Islander, Black, American Indian, and Alaskan Native identities or those identifying with two or more races. Interestingly, there was a considerable increase in the percentage of individuals identifying as Hispanic, from 3.58% in 2000 to 5.86% in 2010, marking an increase of 63.69%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 94.62% | 92.07% | -2.69% |
| Hispanic | 3.58% | 5.86% | 63.69% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |