Explore the Family Name Slack
The meaning of Slack
1. English and Dutch: nickname for an idle person, from Middle Dutch slac, Middle English slak ‘lazy, careless, slow’ (Old English slæc). 2. English: from Middle English slak ‘small shallow valley, hollow in the ground’ (Old Norse slakki). The surname may be topographic, for someone who lived in or by a shallow valley or hollow, or habitational, for someone from any of numerous minor places so named, principally in Derbyshire, Yorkshire, and Lancashire. 3. Americanized form of Slovenian Slak 1 and perhaps also of Czech Šlak (see Slak 2). 4. Americanized form of Czech Slach: from the personal name Slach, a pet form of names beginning with Sla-, e.g. Slavomír.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Slack in the United States?
Based on the Decennial U.S. Census data, the surname Slack has experienced a slight dip in popularity between 2000 and 2010. In 2000, Slack was ranked 2,579th most common surname in the United States, but by 2010 it had slipped to 2,692nd, a decrease of 4.38%. However, the actual number of people with the Slack surname increased from 12,893 in 2000 to 13,377 in 2010, reflecting a growth of 3.75%. The proportion of the population with this surname per 100,000 people also went down by 5.23% during this decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #2,579 | #2,692 | -4.38% |
| Count | 12,893 | 13,377 | 3.75% |
| Proportion per 100k | 4.78 | 4.53 | -5.23% |
Race and Ethnicity of people with the last name Slack
The ethnicity distribution for the surname Slack also saw changes between 2000 and 2010. According to the Decennial U.S. Census, the percentage of those identifying as White decreased from 85.61% to 82.95%. Meanwhile, there were increases in all other ethnic identities. Individuals of Asian/Pacific Islander identity grew from 0.46% to 0.52%, while those identifying with two or more races jumped from 1.14% to 1.85%. The Hispanic share rose from 1.51% to 2.65% and Black representation increased from 10.95% to 11.62%. Lastly, the American Indian and Alaskan Native group moved from 0.33% to 0.42%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 85.61% | 82.95% | -3.11% |
| Black | 10.95% | 11.62% | 6.12% |
| Hispanic | 1.51% | 2.65% | 75.5% |
| Two or More Races | 1.14% | 1.85% | 62.28% |
| Asian/Pacific Islander | 0.46% | 0.52% | 13.04% |
| American Indian and Alaskan Native | 0.33% | 0.42% | 27.27% |
Slack ancestry composition
23andMe computes an ancestry breakdown for each customer. People may have ancestry from just one population or they may have ancestry from several populations. The most commonly-observed ancestry found in people with the surname Slack is British & Irish, which comprises 52.0% of all ancestry found in people with the surname. The next two most common ancestries are French & German (24.7%) and Scandinavian (5.1%). Additional ancestries include Eastern European, Italian, Spanish & Portuguese, Nigerian, and Ashkenazi Jewish.
Ready to learn more about your ancestry? Get the most comprehensive ancestry breakdown on the market by taking our DNA test. Shop 23andMe
| ANCESTRY BREAKDOWN | COMPOSITION |
|---|---|
| British & Irish | 52.0% |
| French & German | 24.7% |
| Scandinavian | 5.1% |
| Other | 18.2% |
Possible origins of the surname Slack
Your DNA provides clues about where your recent ancestors may have lived. Having many distant relatives in the same location suggests that you may all share common ancestry there. Locations with many distant relatives can also be places where people have migrated recently, such as large cities. If a large number of individuals who share your surname have distant relatives in a specific area, it could indicate a connection between your surname and that location, stemming from either recent ancestral ties or migration.
Based on 23andMe data, people with last name Slack have recent ancestry locations in the United Kingdom of Great Britain and Northern Ireland and Ireland.
| RECENT ANCESTRY Location | Percentage |
|---|---|
| Glasgow City, United Kingdom | 86.00% |
| Greater Manchester, United Kingdom | 86.00% |
| West Midlands, United Kingdom | 86.00% |
| Greater London, United Kingdom | 86.00% |
| Merseyside, United Kingdom | 85.70% |
What Slack haplogroups can tell you
Haplogroups are genetic population groups that share a common ancestor on either your paternal or maternal line. These paternal and maternal haplogroups shed light on your genetic ancestry and help tell the story of your family.
The top paternal haplogroup of people with the surname Slack is I-Z138, which is predominantly found among people with European ancestry. Haplogroup I-Z138 is descended from haplogroup I-M170. Other common haplogroups include R-U152 and I-L233, which are predominantly found among people with European and European ancestry. Other surnames with similar common haplogroups are: Perkins, Heckman, Bridges, Haskins, Stanford, Webber, Michael, Weller, Hawk, Pryor.
The most common maternal haplogroups of people with Slack surname are: H1, T2b, H. These most commonly trace back to individuals of European ancestry.
Paternal Haplogroup Origins I-M170
Your paternal lineage may be linked to Alexander Hamilton
Early in the morning on July 11, 1804, Aaron Burr (then Vice President of the United States) and Alexander Hamilton (founder of the U.S. Treasury) dueled on the New Jersey side of the Hudson River. This marked the culmination of a bitter personal and political rivalry between the two men. Alexander Hamilton died as a result of the duel, but his intellectual legacy survives in the founding documents of the nation he helped build. A piece of his genetic legacy survives as well: in the 21st century, genealogists documented the paternal haplogroups of dozens of Hamilton's living descendants and concluded that the Founding Father's paternal haplogroup was a branch of I-DF29.
Your maternal lineage may be linked to Marie Antoinette
Because it is so dominant in the general European population, haplogroup H also appears quite frequently in the continent's royal houses. Marie Antoinette, an Austrian Hapsburg who married into the French royal family, inherited the haplogroup from her maternal ancestors. So did Prince Philip, Duke of Edinburgh, whose recorded genealogy traces his female line to Bavaria. Scientists also discovered that famed 16th century astronomer Nicolaus Copernicus traced his maternal lineages to haplogroup H.
What do people with the surname Slack have in common?
Spoiler alert: it's complicated. People with the same last name are usually no more genetically similar than a randomly sampled group of people from the same population. That said, people with the same surname are more likely to have similar ancestries than randomly sampled individuals. The reason is the tendency of people with similar cultural or geographical backgrounds to preferentially mate with one another. That's why people who share a surname may be more likely to share traits and tendencies in common than people within the general population. Check out the percentages below to see the prevalences of tastes, habits, and traits of people with your surname compared with prevalences among 23andMe users.
Preferences
Chocolate Ice Cream
Prefers chocolate flavored ice cream over other flavors.
"Slack" Surname 42.7%
23andMe Users 41.3%
Traits
Misophonia
When sounds made by others, like the sound of chewing or yawning, provoke strong emotional reactions in an individual.
"Slack" Surname 36.5%
23andMe Users 27.9%
Habits
Sugary Drink
Drinks one or more sugary drinks per day.
"Slack" Surname 27.5%
23andMe Users 21.1%
Wellness
Migraine
A severe headache characterized by intense pain, sensitivity to light and sound, and often accompanied by nausea and vomiting.
"Slack" Surname 18.3%
23andMe Users 16.4%
Are health conditions linked to the last name Slack?
The short answer is that, if there is an association between surname and health, it's usually more about your ancestry than your name. Individuals with a given surname are no more genetically similar than the general population but often have similar ancestries. The populations of people associated with those shared ancestries often have sets of genetic variations, also known as alleles, in common. Some of those alleles are associated with a greater likelihood of developing certain diseases.
Disease variant frequency by ancestry
Disease allele frequencies in populations associated with the surname Slack are shown below. Important Note: not everyone with a disease allele will develop these health condition