Explore the Family Name Troncoso

The meaning of Troncoso

Galician: habitational name from Troncoso in Ourense province, Galicia (Spain), from a derivative of tronco ‘tree trunk, stump’. Some characteristic forenames: Spanish Juan, Manuel, Fernando, Luis, Ricardo, Eduardo, Jose, Mario, Pedro, Rafael, Alberto, Ana.

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

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

Based on the Decennial U.S. Census data, the surname Troncoso has seen a rise in popularity between 2000 and 2010. The rank improved from 12,919 in 2000 to 10,822 in 2010, showing an increase of 16.23%. The count of people with this surname went up from 2,181 to 2,943 during the same period, marking a substantial growth of 34.94%. The proportion per 100,000 people also increased from 0.81 to 1.0, demonstrating a 23.46% change.

	2000	2010	Change
Rank	#12,919	#10,822	16.23%
Count	2,181	2,943	34.94%
Proportion per 100k	0.81	1	23.46%

Race and Ethnicity of people with the last name Troncoso

Regarding the ethnic identity associated with the surname Troncoso, the Decennial U.S. Census data reveals that individuals identifying as Hispanic held the majority both in 2000 and 2010. The percentage of Hispanics using this surname increased by 2.97%, from 88.31% to 90.93%. Meanwhile, the percentage of Whites decreased from 9.08% to 7.07%, a drop of 22.14%. The representation of Asian/Pacific Islanders saw a positive change, growing from 0.73% to 1.02%. However, those of Black ethnicity and American Indian/Alaskan Native descent were less common, with decreases of 30.43% and 60.00% respectively. Those identifying as being part of two or more races also decreased from 0.60% to 0.27%.

	2000	2010	Change
Hispanic	88.31%	90.93%	2.97%
White	9.08%	7.07%	-22.14%
Asian/Pacific Islander	0.73%	1.02%	39.73%
Black	0.69%	0.48%	-30.43%
Two or More Races	0.6%	0.27%	-55%
American Indian and Alaskan Native	0.6%	0.24%	-60%