Explore the Family Name Dec

The meaning of Dec

Polish: from a pet form of the personal name Dionizy, Polish form of Dionysius (see Dennis). Some characteristic forenames: Polish Aleksander, Andrzej, Casimir, Ignacy, Jerzy, Krystyna, Krzysztof, Malgorzata, Mikolaj, Stanislaw, Tadeusz.

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

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

Based on the Decennial U.S. Census data, the surname Dec has slightly increased in popularity between 2000 and 2010. In 2000, the rank of the surname was 24,529, and by 2010 it had moved up to 25,295. The count of individuals with the surname also rose from 955 to 979, a slight growth of 2.51%. However, when considering the proportion per 100,000 people, there was a minor decrease of 5.71%, falling from 0.35 to 0.33.

	2000	2010	Change
Rank	#24,529	#25,295	-3.12%
Count	955	979	2.51%
Proportion per 100k	0.35	0.33	-5.71%

Race and Ethnicity of people with the last name Dec

In terms of ethnic identity, the Decennial U.S. Census data reveals some shifts between 2000 and 2010. The percentage of individuals identifying as Asian/Pacific Islander more than doubled, rising from 0.73% to 1.23%. The count of those reporting two or more races decreased significantly, dropping by 46.41% from 2.09% to 1.12%. The White ethnic group remained the majority, with a small increase from 95.81% to 96.12%. The Hispanic population saw a growth of 39.73%, albeit from a low base of 0.73% to 1.02%. The Black community had an initial representation in 2010 at 0.51%, after no recorded presence in 2000. There was no change for American Indian and Alaskan Native, remaining at 0% for both census years.

	2000	2010	Change
White	95.81%	96.12%	0.32%
Asian/Pacific Islander	0.73%	1.23%	68.49%
Two or More Races	2.09%	1.12%	-46.41%
Hispanic	0.73%	1.02%	39.73%
Black	0%	0.51%	0%
American Indian and Alaskan Native	0%	0%	0%