Explore the Family Name Larock

The meaning of Larock

Americanized form of French Canadian Larocque 2 and probably also of French Larocque 1. Compare Lerock and Rock 7. History: Bearers of the surname Larock are in most, if not all, cases descendants of Philibert Couillaud dit Ro(c)quebrune from France (see Larocque).

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

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

According to the data compiled from the Decennial U.S. Census, the surname Larock has experienced some changes in popularity over a decade. In 2000, it ranked as the 11,994th most common surname, while by 2010 it had slightly decreased in rank to the 12,099th position, marking a minor decline of 0.88 percent. Despite the drop in rank, the count of individuals bearing the surname Larock actually increased from 2,390 in 2000 to 2,576 in 2010, indicating a growth rate of 7.78 percent. However, when considering proportion per 100,000 people, the prevalence of the Larock surname dipped from 0.89 to 0.87, a decrease of 2.25 percent.

20002010Change
Rank#11,994#12,099-0.88%
Count2,3902,5767.78%
Proportion per 100k0.890.87-2.25%

Race and Ethnicity of people with the last name Larock

In terms of ethnic identity, also based on the Decennial U.S. Census data, the Larock surname demonstrated shifts between 2000 and 2010. The largest change was seen in the Asian/Pacific Islander population, growing from 0.42 percent to 2.29 percent, an impressive increase of 445.24 percent. The Hispanic and Black populations with the Larock surname both rose as well, at 76.00 percent and 57.14 percent respectively. The American Indian and Alaskan Native population also saw a slight increase of 4.30 percent. Conversely, two ethnicities saw decreases: the proportion identifying as White dropped by 3.58 percent, and those identifying as belonging to two or more races dipped by 1.52 percent.

20002010Change
White91.88%88.59%-3.58%
American Indian and Alaskan Native3.72%3.88%4.3%
Asian/Pacific Islander0.42%2.29%445.24%
Black1.26%1.98%57.14%
Two or More Races1.97%1.94%-1.52%
Hispanic0.75%1.32%76%