Explore the Family Name Oltmanns

The meaning of Oltmanns

German: patronymic from Oltmann. Some characteristic forenames: German Fritz, Gerhard, Kurt, Otto.

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

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

According to the Decennial U.S. Census data, the surname Oltmanns held the rank of 34,554 in popularity in 2000, and by 2010, it had slightly dipped to 34,967, reflecting a minor decline of 1.2%. The count of individuals bearing this surname increased from 620 in 2000 to 645 in 2010, showing a growth of 4.03%. However, when we look at the proportion per 100k people, there was a slight drop of 4.35% from 0.23 in 2000 to 0.22 in 2010.

20002010Change
Rank#34,554#34,967-1.2%
Count6206454.03%
Proportion per 100k0.230.22-4.35%

Race and Ethnicity of people with the last name Oltmanns

In terms of ethnicity, the Decennial U.S. Census data reveals that the majority of individuals with the Oltmanns surname identified as White, with 97.58% in 2000 and 96.28% in 2010, resulting in a slight decrease of 1.33%. A small fraction of the population identified as Hispanic, which grew from 1.13% in 2000 to 1.40% in 2010, marking an increase of 23.89%. In 2010, new entries appeared on the ethnicity table. People identifying with two or more races made up 1.24% of those with the Oltmanns surname, while 0.93% identified as Asian/Pacific Islander. There were no individuals who identified as Black or American Indian and Alaskan Native in either 2000 or 2010.

20002010Change
White97.58%96.28%-1.33%
Hispanic1.13%1.4%23.89%
Two or More Races0%1.24%0%
Asian/Pacific Islander0%0.93%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%