Explore the Family Name Theiss

The meaning of Theiss

North German: variant of Theis. Some characteristic forenames: German Frieda, Helmut, Ingo, Johann, Klaus, Viktor.

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

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

Based on data from the Decennial U.S. Census, the surname Theiss saw a decrease in popularity between 2000 and 2010. In 2000, Theiss ranked 11,200 in popularity among all surnames in the United States, falling to 11,940 in 2010 — a drop of 6.61%. However, despite this decline in rank, the count of individuals with the Theiss surname actually increased slightly from 2,595 in 2000 to 2,619 in 2010, a growth of 0.92%. Still, the proportion of individuals named Theiss per 100k people decreased by 7.29% during this period.

	2000	2010	Change
Rank	#11,200	#11,940	-6.61%
Count	2,595	2,619	0.92%
Proportion per 100k	0.96	0.89	-7.29%

Race and Ethnicity of people with the last name Theiss

In terms of ethnicity, the Decennial U.S. Census data indicates that the majority of individuals with the surname Theiss identify as White, with 96.69% in 2000 and 95.95% in 2010. This represents a slight decrease of 0.77% over the decade. The proportion of Theiss individuals identifying as Hispanic saw the most significant increase, going from 1.70% in 2000 to 2.44% in 2010, a rise of 43.53%. The Black population with the Theiss surname also experienced growth, increasing by 34.78%. Meanwhile, those identifying as two or more races declined by 15.18%, and there were no recorded instances of Theiss individuals identifying as Asian/Pacific Islander or American Indian and Alaskan Native in either year.

	2000	2010	Change
White	96.69%	95.95%	-0.77%
Hispanic	1.7%	2.44%	43.53%
Two or More Races	1.12%	0.95%	-15.18%
Black	0.23%	0.31%	34.78%
Asian/Pacific Islander	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%