Explore the Family Name Giamanco

The meaning of Giamanco

Americanized form of Italian Giammanco.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname Giamanco saw a minor decrease between 2000 and 2010. In 2000, Giamanco was ranked 59,916 in prevalence among surnames in the United States, but by 2010 it had dropped slightly to 62,359, representing a change of -4.08%. Despite this drop in rank, the actual count of people with the Giamanco surname increased by 1.9% from 315 to 321 over the same period. However, the proportion per 100,000 people decreased by 8.33%, suggesting that while more people bear the name, it became less common relative to the growth of the overall population.

	2000	2010	Change
Rank	#59,916	#62,359	-4.08%
Count	315	321	1.9%
Proportion per 100k	0.12	0.11	-8.33%

Race and Ethnicity of people with the last name Giamanco

Regarding ethnic identity, the Giamanco surname is predominantly associated with individuals identifying as White, based on the Decennial U.S. Census data. In 2000, approximately 91.43% of Giamancos identified as White, although this percentage decreased slightly to 89.10% by 2010. The second largest ethnicity group among those with the Giamanco surname identified as Hispanic, increasing from 4.76% in 2000 to 5.61% in 2010. A smaller percentage, 3.17% in 2000 and 2.80% in 2010, identified as Black. The data also shows an emergence in the number of Giamancos identifying with two or more races, accounting for 2.18% in 2010, up from zero in 2000. No Giamancos identified as Asian/Pacific Islander or American Indian and Alaskan Native in either census year.

	2000	2010	Change
White	91.43%	89.1%	-2.55%
Hispanic	4.76%	5.61%	17.86%
Black	3.17%	2.8%	-11.67%
Two or More Races	0%	2.18%	0%
Asian/Pacific Islander	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%