Explore the Family Name Lacoy

The meaning of Lacoy

Altered form of French Lacaille. Some characteristic forenames: French Amie, Normand.

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

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

Based on data from the Decennial U.S. Census, the surname Lacoy has seen a decrease in popularity between 2000 and 2010. In the year 2000, Lacoy ranked as the 75,466th most popular surname, but by 2010 it had slipped to 91,625th, a drop of 21.41%. The actual count of individuals with this surname also decreased from 238 people in 2000 to 201 in 2010, representing a decline of 15.55%. The proportion per 100k people also saw a decrease of 22.22%, moving from 0.09 to 0.07.

20002010Change
Rank#75,466#91,625-21.41%
Count238201-15.55%
Proportion per 100k0.090.07-22.22%

Race and Ethnicity of people with the last name Lacoy

Regarding the ethnicity associated with the surname Lacoy, Decennial U.S. Census data indicates that in 2000 and 2010, there were no recorded instances of this surname within the Asian/Pacific Islander, Hispanic, or Black communities. The highest representation was within the White community, which rose from 85.71% in 2000 to 91.04% in 2010, demonstrating an increase of 6.22%. The proportion of those identifying with two or more races also increased, going from 3.36% to 3.98%, marking an 18.45% rise. There was a significant decrease among those identifying as American Indian and Alaskan Native, falling from 7.56% to 2.99%, a drop of 60.45%.

20002010Change
White85.71%91.04%6.22%
Two or More Races3.36%3.98%18.45%
American Indian and Alaskan Native7.56%2.99%-60.45%
Asian/Pacific Islander0%0%0%
Hispanic0%0%0%
Black0%0%0%