Explore the Family Name Grandjean

The meaning of Grandjean

French and Swiss French: from grand ‘tall, large’ + the personal name Jean (equivalent of John), hence a nickname meaning ‘Big John’, applied in a literal or ironical sense, or a distinguishing name between members of the same family with a common personal name. This surname is also found in Belgium (mainly Wallonia) and Denmark.

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

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

Based on data from the Decennial U.S. Census, the popularity of the surname Grandjean has seen a subtle decrease between 2000 and 2010. In 2000, it was ranked as the 48,963rd most popular surname, but by 2010, it fell to 52,037th place, reflecting a change of -6.28%. During the same period, the count of individuals with this surname also slightly decreased from 404 to 399, indicating a -1.24% change. Consequently, the proportion of people with the Grandjean surname per 100,000 population also saw a slight drop from 0.15 to 0.14.

20002010Change
Rank#48,963#52,037-6.28%
Count404399-1.24%
Proportion per 100k0.150.14-6.67%

Race and Ethnicity of people with the last name Grandjean

The ethnic identity associated with the surname Grandjean has evolved over the decade, according to the Decennial U.S. Census data. In 2000, a significant 87.38% of those with this surname identified as White, which decreased to 82.96% in 2010, marking a change of -5.06%. The Hispanic and Black ethnic groups have seen an increase in representation among individuals with the Grandjean surname. From 2000 to 2010, the percentage of Hispanics rose from 5.94% to 7.02%, an increase of 18.18%, while the Black representation grew from 5.94% to 8.52%, marking a notable 43.43% rise. There was no change observed for the Asian/Pacific Islander and American Indian and Alaskan Native communities during this period.

20002010Change
White87.38%82.96%-5.06%
Black5.94%8.52%43.43%
Hispanic5.94%7.02%18.18%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
American Indian and Alaskan Native0%0%0%