Explore the Family Name Deam

The meaning of Deam

1. English (Lancashire): variant of Deem. 2. Americanized form of German Diem, or the variant Diehm.

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

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

Based on data from the Decennial U.S. Census, the popularity of the surname Deam saw a slight decline between the years 2000 and 2010. In 2000, it ranked as the 39,304th most popular surname, with an estimated count of 527 individuals. By 2010, its rank had dropped to 43,885, and the count of individuals with this surname decreased by approximately 6.83% to 491. The proportion of individuals with the Deam surname per 100,000 people also declined by 15%, from 0.2 in 2000 to 0.17 in 2010.

	2000	2010	Change
Rank	#39,304	#43,885	-11.66%
Count	527	491	-6.83%
Proportion per 100k	0.2	0.17	-15%

Race and Ethnicity of people with the last name Deam

The ethnic identity associated with the surname Deam also showed shifts, according to the Decennial U.S. Census data. In both 2000 and 2010, the majority of those with the Deam surname identified as White, although this percentage decreased slightly from 89.94% to 88.59%. The percentage identifying as Black also decreased, from 3.80% to 3.05%. Meanwhile, the proportion of individuals with this surname who identified as Asian/Pacific Islander, Hispanic, or Two or more races all increased over the decade. The largest increase was seen in those identifying with Two or more races, which rose by approximately 71.58%. Those identifying as Asian/Pacific Islander rose by 47.37%, while the percentage of Hispanics increased by 33.77%. Only a slight decrease was noted for the American Indian and Alaskan Native category, dropping by 5.92%.

	2000	2010	Change
White	89.94%	88.59%	-1.5%
Hispanic	2.28%	3.05%	33.77%
Black	3.8%	3.05%	-19.74%
Asian/Pacific Islander	1.52%	2.24%	47.37%
Two or More Races	0.95%	1.63%	71.58%
American Indian and Alaskan Native	1.52%	1.43%	-5.92%