Explore the Family Name Koski
The meaning of Koski
1. Finnish: habitational name from farms so named, or ornamental name from koski ‘rapids’. Adopted as a surname widely in the late 19th and early 20th centuries in western and southern Finland (compare Laine 4). In the US, this is sometimes a shortened form of other Finnish surnames formed with this element, e.g. Kalliokoski, Ylikoski. 2. Polish: habitational name from any of several places called Koski, named with kos ‘blackbird’. In the US, this may also be a shortened (and shortened) form of some longer surname of Polish origin ending in -ko(w)ski or beginning with Ko- and ending in -ski. 3. Croatian (Koški): habitational name for someone from a place called Koška, in Slavonia. Compare Koskey, Koskie, Kosky. Some characteristic forenames: Finnish Eino, Tauno, Arvo, Toini, Aarne, Armas, Ensio, Mikko, Reijo, Reino, Toivo, Eero.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Koski in the United States?
According to the Decennial U.S. Census data, the popularity of the surname Koski has seen a small decline from 2000 to 2010. In 2000, it was ranked as the 5629th most popular surname, but by 2010, it had dropped to the 6424th position, marking a change of -14.12%. The count of individuals carrying this surname also decreased during this period from 5655 to 5288, a reduction of 6.49%. The proportion of the name per 100k people likewise fell by 14.76%, dropping from 2.1 in 2000 to 1.79 in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #5,629 | #6,424 | -14.12% |
| Count | 5,655 | 5,288 | -6.49% |
| Proportion per 100k | 2.1 | 1.79 | -14.76% |
Race and Ethnicity of people with the last name Koski
In terms of ethnic identity, the Decennial U.S. Census reveals that there have been some significant shifts among those with the surname Koski between 2000 and 2010. While a majority of the bearers of this name identify as White (95.63% in 2000, reducing slightly to 94.55% in 2010), there have been noteworthy changes in other ethnic identities. The proportion identifying as Asian/Pacific Islander saw an increase of 15.56% over the decade, while those identifying with two or more races increased by 41.84%. The percentage identifying as Hispanic also rose considerably from 1.08% to 1.66%. Conversely, the proportions identifying as Black and American Indian and Alaskan Native experienced decreases of 44.44% and 16.90% respectively.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 95.63% | 94.55% | -1.13% |
| Two or More Races | 1.41% | 2% | 41.84% |
| Hispanic | 1.08% | 1.66% | 53.7% |
| Asian/Pacific Islander | 0.9% | 1.04% | 15.56% |
| American Indian and Alaskan Native | 0.71% | 0.59% | -16.9% |
| Black | 0.27% | 0.15% | -44.44% |
Koski 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 Koski is British & Irish, which comprises 29.4% of all ancestry found in people with the surname. The next two most common ancestries are Finnish (23.0%) and French & German (20.9%). Additional ancestries include Scandinavian, Eastern European, Italian, Spanish & Portuguese, and Ashkenazi Jewish.
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| ANCESTRY BREAKDOWN | COMPOSITION |
|---|---|
| British & Irish | 29.4% |
| Finnish | 23.0% |
| French & German | 20.9% |
| Other | 26.7% |
Possible origins of the surname Koski
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 Koski have recent ancestry locations in the United Kingdom of Great Britain and Northern Ireland and Ireland.
| RECENT ANCESTRY Location | Percentage |
|---|---|
| Greater London, United Kingdom | 75.70% |
| Merseyside, United Kingdom | 74.30% |
| Greater Manchester, United Kingdom | 74.30% |
| South Yorkshire, United Kingdom | 73.60% |
| Glasgow City, United Kingdom | 73.60% |
What Koski 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 Koski is I-L258, which is predominantly found among people with European ancestry. Haplogroup I-L258 is descended from haplogroup I-M170. Other common haplogroups include R-CTS241 and R-Z282, which are predominantly found among people with European and European ancestry. Other surnames with similar common haplogroups are: Maki, Mattson, Aho, Hendrickson, Erickson, Niemi, Kangas, Lindquist, Hastings, Dahl.
The most common maternal haplogroups of people with Koski 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 many northern European men
If you have haplogroup I1a1b, your paternal line stems from a young branch of I-M253 called I-L22, which likely arose in the last 3,000 years. I-L22 is most common in Northern Europe, but a recent study found that this haplogroup was present in a significant portion of the Partecipanza population living in San Giovanni in Persiceto, Italy. The area of San Giovanni in Persiceto was involved in a migration period in 728 AD, when it became part of the Lombard kingdom, under King Aistulf. San Giovanni in Persiceto was only under Lombard rule for 48 years, after which the Lombards were defeated by King Charlemagne in 776 AD. There are several characteristics of San Giovanni in Persiceto that link it to other Lombard settlements. For instance, some research suggests San Giovanni in Persiceto was the seat of a Lombard Duke between 750 and 800 AD. It is possible that the Lombards who ruled over San Giovanni in Persiceto played an important role in the introduction and growth of haplogroup I-L22 in the region.
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 Koski 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.
"Koski" Surname 44.0%
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.
"Koski" Surname 37.5%
23andMe Users 27.9%
Habits
Sugary Drink
Drinks one or more sugary drinks per day.
"Koski" Surname 10.0%
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.
"Koski" Surname 23.4%
23andMe Users 16.4%
Are health conditions linked to the last name Koski?
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 Koski are shown below. Important Note: not everyone with a disease allele will develop these health condition