Explore the Family Name Trewin

The meaning of Trewin

Cornish (Cornwall and Devon): habitational name from Trewin in Sheviock (Cornwall), Trewin in Lanteglos, near Camborne (Cornwall), and perhaps also from one or more of the places in Cornwall called Trewen. The placenames probably derive from Middle Cornish tre ‘estate, farmstead’ + guyn ‘white’.

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

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

Based on the Decennial U.S. Census data, the surname Trewin has seen a rise in popularity over time. In 2000, it was ranked as the 61,376th most common surname, but by 2010, it had climbed to the 57,101st position, reflecting a positive change of approximately 7%. The count of individuals with this surname also increased from 306 to 357 during this decade, showing a growth rate of nearly 17%. Furthermore, the proportion of people named Trewin per 100,000 residents saw an increase of around 9% between these years.

	2000	2010	Change
Rank	#61,376	#57,101	6.97%
Count	306	357	16.67%
Proportion per 100k	0.11	0.12	9.09%

Race and Ethnicity of people with the last name Trewin

In terms of ethnic identity, the majority of individuals with the Trewin surname identified as White, according to the Decennial U.S. Census data. This group accounted for 82.68% in 2000 and slightly rose to 83.19% in 2010. Hispanic ethnicity followed, making up 15.36% in 2000 and decreasing slightly to 14.85% in 2010. A small percentage (1.4%) in 2010 reported having two or more races. Meanwhile, there were no reported instances of the Trewin surname among Asian/Pacific Islanders, Black individuals, or American Indian and Alaskan Natives during these census periods.

	2000	2010	Change
White	82.68%	83.19%	0.62%
Hispanic	15.36%	14.85%	-3.32%
Two or More Races	0%	1.4%	0%
Asian/Pacific Islander	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%