Explore the Family Name Jennison

The meaning of Jennison

English (Yorkshire): perhaps a patronymic from the Middle English male personal names Janyn or Janin, diminutives of Jan, Jon, or Jen (see John), + -son. The name may also arise from the Middle English male personal name Jen (see Jean) + -son.

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

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

The surname Jennison's popularity, based on the Decennial U.S. Census data, has seen a decline over a decade. In 2000, it held a rank of 20,763 which fell to 25,975 in 2010, indicating a 25.1% decrease in popularity. The count of people bearing the surname also dwindled from 1,183 in 2000 to 945 in 2010, representing a drop of 20.12%. Consequently, the proportion of people named Jennison per 100k decreased by 27.27%, moving from 0.44 to 0.32.

	2000	2010	Change
Rank	#20,763	#25,975	-25.1%
Count	1,183	945	-20.12%
Proportion per 100k	0.44	0.32	-27.27%

Race and Ethnicity of people with the last name Jennison

Regarding the ethnic identity associated with the Jennison surname, the data from the Decennial U.S. Census reveals that the majority identified as White in both 2000 and 2010, despite experiencing a slight drop of 1.84% over the decade. There was no representation from the Asian/Pacific Islander or American Indian and Alaskan Native communities reported in either year. Of note is the increase in those identifying as belonging to two or more races, which rose from 0.85% in 2000 to 1.38% in 2010, marking a growth of 62.35%. The Hispanic community also saw an increase of 46.53%, going from 1.01% in 2000 to 1.48% in 2010. Lastly, those identifying as Black witnessed a marginal rise of 11.76%, moving from 0.85% to 0.95% over the decade.

	2000	2010	Change
White	96.7%	94.92%	-1.84%
Hispanic	1.01%	1.48%	46.53%
Two or More Races	0.85%	1.38%	62.35%
Black	0.85%	0.95%	11.76%
Asian/Pacific Islander	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%