Explore the Family Name Olthoff

The meaning of Olthoff

North German and Dutch (northeastern Netherlands): habitational name for someone who lived at the ‘old farmstead’ after distribution of the estate. From Middle Low German olt, alt ‘old’ + hof ‘farmstead, manor farm’. See Althoff.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Olthoff in the United States?

Based on the Decennial U.S. Census data, the surname Olthoff has seen an increase in popularity from 2000 to 2010. In 2000, it was ranked at 48,567 among all surnames but jumped to 45,886 by 2010, a change of 5.52%. The count of individuals with this surname also increased from 408 in 2000 to 465 in 2010, marking a substantial growth of 13.97%. The proportion of people with the Olthoff surname per 100,000 also saw a rise of 6.67% over the same period.

	2000	2010	Change
Rank	#48,567	#45,886	5.52%
Count	408	465	13.97%
Proportion per 100k	0.15	0.16	6.67%

Race and Ethnicity of people with the last name Olthoff

When looking at the ethnic identity associated with the surname Olthoff, the Decennial U.S. Census data shows that most people with this surname identify as White, although there has been a slight decrease in this group from 95.34% in 2000 to 93.12% in 2010. During the same period, there's been a notable increase in those identifying as American Indian and Alaskan Native, from 1.47% to 1.72%. The data also shows a new emergence of Hispanic identity among those with the Olthoff surname, which wasn't recorded in 2000 but reached 1.51% by 2010. Meanwhile, the percentage of those identifying as two or more races slightly decreased from 1.96% to 1.94%, and there were no recorded instances of those identifying as Asian/Pacific Islander or Black in either year.

	2000	2010	Change
White	95.34%	93.12%	-2.33%
Two or More Races	1.96%	1.94%	-1.02%
American Indian and Alaskan Native	1.47%	1.72%	17.01%
Hispanic	0%	1.51%	0%
Asian/Pacific Islander	0%	0%	0%
Black	0%	0%	0%