Explore the Family Name Deroche

The meaning of Deroche

1. Altered form of French Desrochers, a cognate (in plural) of 2 below. 2. French: topographic name, with fused preposition de ‘from’, for someone who lived by a rocky outcrop or crag, from Old French roche ‘rock’ (see Roche).

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

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

Based on the Decennial U.S. Census data, the surname Deroche has seen a slight shift in popularity between 2000 and 2010. In 2000, the surname ranked 12,355th in the United States, but by 2010 it had slipped to 12,689th, reflecting a 2.7% decrease. Despite this drop in rank, the actual count of individuals possessing the Deroche surname increased from 2,306 in 2000 to 2,434 in 2010, indicating a growth of 5.55%. However, when looking at the proportion per 100K people, there was a minor decline of 2.35% over the decade.

	2000	2010	Change
Rank	#12,355	#12,689	-2.7%
Count	2,306	2,434	5.55%
Proportion per 100k	0.85	0.83	-2.35%

Race and Ethnicity of people with the last name Deroche

The ethnicity associated with the surname Deroche also evolved during this period. According to the Decennial U.S. Census data, the majority of Deroches identified as White in both 2000 and 2010, though there was a slight decrease of 3.05%. The Hispanic representation saw significant growth, increasing by 85.84%, while the representation of Black rose by 17.06%. The percentage of those identifying as American Indian and Alaskan Native also increased by 23.54%. Meanwhile, the proportions of Asian/Pacific Islanders and those belonging to two or more races both decreased, by 5.71% and 14.39%, respectively.

	2000	2010	Change
White	87.51%	84.84%	-3.05%
Black	5.51%	6.45%	17.06%
American Indian and Alaskan Native	4.12%	5.09%	23.54%
Hispanic	1.13%	2.1%	85.84%
Two or More Races	1.39%	1.19%	-14.39%
Asian/Pacific Islander	0.35%	0.33%	-5.71%