Explore the Family Name Sennott

The meaning of Sennott

English: variant of Sinnott. This form of the surname is now rare in Britain. Some characteristic forenames: Irish Siobhan.

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

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

Based on data from the Decennial U.S. Census, the surname Sennott has seen a small dip in popularity from 2000 to 2010. In 2000, it was ranked as the 55,732nd most popular surname and dropped just slightly to the 55,741st position by 2010. This represents a minor change of -0.02%. However, the actual count of individuals with the Sennott surname increased during this period, from 344 people in 2000 to 368 in 2010, indicating a growth of approximately 6.98%. The proportion per 100k people also decreased by 7.69%, from 0.13 in 2000 to 0.12 in 2010.

20002010Change
Rank#55,732#55,741-0.02%
Count3443686.98%
Proportion per 100k0.130.12-7.69%

Race and Ethnicity of people with the last name Sennott

Regarding the ethnic identity of those bearing the Sennott surname, data from the Decennial U.S. Census reveals that the majority identify as White. Specifically, in both 2000 and 2010, almost all (98.26% in 2000 and 98.37% in 2010) of the individuals with this surname identified as White. This shows a slight increase of 0.11% over the decade. Other ethnicities such as Asian/Pacific Islander, those identifying with two or more races, Hispanic, Black, and American Indian and Alaskan Native were either non-existent or suppressed for privacy in the census data for both years.

20002010Change
White98.26%98.37%0.11%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
Hispanic0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%