Explore the Family Name Dennett

The meaning of Dennett

English: from a pet form of Middle English Denis (see Dennis), or possibly from a pet form of Denise, as, for example, Denote, a female character in Piers Plowman.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Dennett has increased over a decade. In 2000, Dennett was ranked as the 13,540th most popular surname, but by 2010, it had risen to the 12,576th spot, marking a significant increase of 7.12 percent. Likewise, the count of individuals bearing this surname also grew from 2,058 in 2000 to 2,462 in 2010, reflecting a substantial 19.63 percent rise. This growth trend is also seen in the proportion per 100k, which went up from 0.76 to 0.83, indicating a 9.21 percent growth.

	2000	2010	Change
Rank	#13,540	#12,576	7.12%
Count	2,058	2,462	19.63%
Proportion per 100k	0.76	0.83	9.21%

Race and Ethnicity of people with the last name Dennett

The ethnicity associated with the surname Dennett also witnessed changes between 2000 and 2010 based on the Decennial U.S. Census data. The percentage of Asian/Pacific Islanders with the surname Dennett rose by 16.33 percent, while there was a significant 40.19 percent increase among Blacks. Hispanics also saw a 7.94 percent increase in the same period. However, there were decreases noted in other ethnic identities. The proportion of Whites with the surname Dennett fell by 2.80 percent, those identifying as Two or more races declined by 10.29 percent, and the American Indian and Alaskan Natives category saw an 8.61 percent decrease.

	2000	2010	Change
White	84.5%	82.13%	-2.8%
Black	5.3%	7.43%	40.19%
Hispanic	6.17%	6.66%	7.94%
Two or More Races	2.04%	1.83%	-10.29%
American Indian and Alaskan Native	1.51%	1.38%	-8.61%
Asian/Pacific Islander	0.49%	0.57%	16.33%