Find out how popular the last name Lacas is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Lacas.
An obscure surname of uncertain etymology, possibly derived from a place name.
Lacas, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Lacas surname is from the 2010 census data.
Lacas is the 128249th most popular name in America based on the data we have collected from the U.S. Census Bureau.
The Lacas surname appeared 133 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname Lacas.
We can also compare 2010 data for Lacas to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.
| 2010 | 2000 | Change (%) | |
|---|---|---|---|
| Rank | 128249 | 109915 | 15.40% |
| Count | 133 | 149 | -11.35% |
| Proportion per 100k | 0.05 | 0.06 | -18.18% |
The surname Lacas is of French origin, first appearing in records from the Normandy region of northern France during the early medieval period, around the 11th century. The name is believed to be derived from the Old French word "lache," meaning "lazy" or "slothful," possibly referring to a personal characteristic or occupation of an early bearer.
One of the earliest known references to the Lacas name can be found in a medieval manuscript from the Abbey of Fécamp in Normandy, dated around 1120, which mentions a landowner named Robertus de Lacas. This suggests the name was already well-established in the area by that time.
The Lacas surname is also recorded in the famous Domesday Book, a comprehensive survey of land ownership in England commissioned by William the Conqueror in 1086. The entry notes a "Willelmus Lacas" as a landowner in the county of Wiltshire.
In the 13th century, records show a Jehan Lacas serving as a knight in the court of King Louis IX of France, indicating the family's standing and significance during that era. Another notable bearer was Pierre Lacas, a renowned French architect who oversaw the construction of several churches and cathedrals in Paris during the late 15th century.
As the name spread beyond its Norman origins, variations in spelling began to emerge, such as Lacasse, Lacaze, and Lacasse. In England, the surname is sometimes found rendered as Lacey or Lacy, possibly due to the influence of the Norman-French noble family of that name.
Other historical figures bearing the Lacas surname include:
We also have some data on the ancestry of people with the surname Lacas.
The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:
For the most recent 2010 census data, the race/ethnic origin breakdown for Lacas was:
| Race/Ethnicity | Percentage | Total Occurrences |
|---|---|---|
| Non-Hispanic White Only | 86.47% | 115 |
| Non-Hispanic Black Only | 3.76% | 5 |
| Non-Hispanic Asian and Pacific Islander Only | (S)% | (S) |
| Non-Hispanic American Indian and Alaskan Native | (S)% | (S) |
| Non-Hispanic of Two or More Races | 0.00% | 0 |
| Hispanic Origin | 8.27% | 11 |
Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.
Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Lacas has changed in the 10 years between the two census surveys.
| 2010 | 2000 | Change (%) | |
|---|---|---|---|
| White | 86.47% | 85.91% | 0.65% |
| Black | 3.76% | 3.36% | 11.24% |
| Asian and Pacific Islander | (S)% | 6.04% | (S)% |
| American Indian and Alaskan Native | (S)% | 0.00% | (S)% |
| Two or More Races | 0.00% | 0.00% | 0.00% |
| Hispanic | 8.27% | 4.70% | 55.05% |
The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.
The history and meaning of the name Lacas was researched and written by our team of onomatology and genealogy experts.
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