Explore the Family Name Del Fierro

The meaning of Del Fierro

Asturian-Leonese and Spanish: variant of Fierro ‘iron’, with the preposition and definite article del ‘of the’.

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

How common is the last name Del Fierro in the United States?

Based on data from the Decennial U.S. Census, the popularity of the surname Del Fierro has shown significant growth in the decade between 2000 and 2010. The rank of this surname improved by 14.13 percent, moving up from 46,678 to 40,082. Concurrently, the count of people bearing this last name increased by 27.51 percent, with the number rising from 429 to 547. In terms of proportion per 100,000 people, there was an increase of 18.75 percent, from 0.16 to 0.19.

	2000	2010	Change
Rank	#46,678	#40,082	14.13%
Count	429	547	27.51%
Proportion per 100k	0.16	0.19	18.75%

Race and Ethnicity of people with the last name Del Fierro

The ethnic identity associated with the surname Del Fierro also shifted slightly in the same period, as evidenced by data from the Decennial U.S. Census. The Hispanic ethnicity accounted for the highest percentage, increasing marginally by 1.96 percent from 48.95 percent to 49.91 percent. The proportion of those identifying as Asian/Pacific Islander decreased by 6.68 percent, moving from 36.83 percent to 34.37 percent. Meanwhile, the count of individuals of two or more races increased by a significant 44.88 percent, going up from 6.06 percent to 8.78 percent. The white population saw a decrease of 9.38 percent, shifting from 7.46 percent to 6.76 percent. There were no changes noted in the Black or American Indian and Alaskan Native populations.

	2000	2010	Change
Hispanic	48.95%	49.91%	1.96%
Asian/Pacific Islander	36.83%	34.37%	-6.68%
Two or More Races	6.06%	8.78%	44.88%
White	7.46%	6.76%	-9.38%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%