Explore the Family Name Jo

The meaning of Jo

1. Korean: variant of Cho 1. 2. Chinese: variant of Cho. 3. Japanese (Jō): written 城 ‘castle’. The same character is also pronounced Shiro. One noble family in Echigo (now Niigata prefecture) was descended from the Taira clan. Another name pronounced similarly, written 情 ‘emotion’, is found in Okinawa. 4. Hungarian (Jó): nickname from jó ‘good’. Some characteristic forenames: Chinese Young, Jae, Kyung, Sung, Chun, Heon, Yong, Dong, Han, Ho, Won, Yoon. Korean Chang, Byung, Jang, Wonho, Woong, Cheol, Chul, Dong Hyun, Eun Hee, Ho Soon, Hyun Sook, Hyun Young. Japanese Kyu, Hiroshi, Satoru, Shingo, Tadao, Tadashi, Taisuke, Takao, Yoshi.

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

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

Based on the Decennial U.S. Census data, the surname Jo has seen a significant increase in popularity between 2000 and 2010. In 2000, Jo was ranked 11,476th most common surname, by 2010 it had risen to the 9,108th position, indicating a change of over 20%. The number of people with this surname also increased from 2,517 to 3,588 during the same period, marking a substantial rise of approximately 43%. The proportion of individuals with this surname per 100k of population also saw an increase from 0.93 to 1.22, translating to a growth of over 31%.

20002010Change
Rank#11,476#9,10820.63%
Count2,5173,58842.55%
Proportion per 100k0.931.2231.18%

Race and Ethnicity of people with the last name Jo

Regarding ethnic identity, the Decennial U.S. Census shows that the majority of people with the surname Jo identify as Asian/Pacific Islander. In fact, the percentage of people with this ethnic identity increased from 80.25% in 2000 to 85.23% in 2010. There were also minor increases in those identifying as two or more races and Hispanic, with changes of 1.67% and 1.37%, respectively. However, there was a notable decrease in the percentage of individuals identifying as White and Black, with the former seeing a dip of -32.34% and the latter a drop of -42.18%. Notably, the data for American Indian and Alaskan Native identity was not reported in 2000, but by 2010, 0.17% identified as such.

20002010Change
Asian/Pacific Islander80.25%85.23%6.21%
White10.05%6.8%-32.34%
Hispanic4.37%4.43%1.37%
Black2.94%1.7%-42.18%
Two or More Races0%1.67%0%
American Indian and Alaskan Native0%0.17%0%

Jo 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 Jo is Korean, which comprises 42.2% of all ancestry found in people with the surname. The next two most common ancestries are British & Irish (14.4%) and French & German (9.4%). Additional ancestries include Chinese, Japanese, Eastern European, Indigenous American, and Spanish & Portuguese.

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ANCESTRY BREAKDOWNCOMPOSITION
Korean42.2%
British & Irish14.4%
French & German9.4%
Other34.1%
Jo

Possible origins of the surname Jo

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 Jo have recent ancestry locations spanning a few countries, mostly in South Korea, and the United Kingdom of Great Britain and Northern Ireland.

RECENT ANCESTRY LocationPercentage
Seoul, South Korea39.30%
Greater London, United Kingdom32.80%
Merseyside, United Kingdom32.80%
Greater Manchester, United Kingdom32.80%
Glasgow City, United Kingdom32.80%

What Jo 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 Jo is O-F2415, which is predominantly found among people with East Asian & Indigenous American ancestry. Haplogroup O-F2415 is descended from haplogroup O-M1359. Other common haplogroups include E-M183 and O-F2859, which are predominantly found among people with European and East Asian & Indigenous American ancestry.

The most common maternal haplogroups of people with Jo surname are: B4, H, D4. These most commonly trace back to individuals of European ancestry.

joPaternal Haplogroup Origins O-M1359
Paternal Haplo Image

Your paternal lineage may be linked to the Cham

One of the many populations harboring members of haplogroup O1b1a1a1a1 is the Cham ethnic group, a group of people who speak Austronesian languages in Mainland Southeast Asia. Austronesian languages make up a language family that is extremely large and widespread, comprising over 350 million people on islands such as Madagascar, Easter Island, and many others. However, Austronesian languages are less common on mainland Asia, with a notable exception being the Chamic language. Research suggests that ancestors of the Cham people migrated from Southeast Asian islands to the mainland around the year 500 BCE, and that early Cham populations quickly began mixing with indigenous southern Vietnamese populations. As a result, the Chamic language now has words that were borrowed from languages spoken by indigenous Vietnamese people. It is likely that an ancestral Kinh population was one of the populations that mixed with the Cham people shortly after their migration to mainland Asia.

Your maternal lineage may be linked to the Han

Members of haplogroup D are found in both northern and southern Han Chinese populations at low to moderate frequencies. The Han people, who all share the same language and similar cultural practices, are the largest ethnic group in the world, with about 1.2 billion people. Historical evidence shows that Han people are descendants of the ancient Huaxia tribes that come from northern China, and Han language and culture only expanded into southern China in the last 2,000 years. The spread of Han people and culture from northern to southern China was likely driven by warfare and famine in the north.

Maternal Haplo Image

What do people with the surname Jo 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

Jo

Chocolate Ice Cream

Prefers chocolate flavored ice cream over other flavors.

"Jo" Surname 37.0%

23andMe Users 41.3%

Traits

Jo

Misophonia

When sounds made by others, like the sound of chewing or yawning, provoke strong emotional reactions in an individual.

"Jo" Surname 38.5%

23andMe Users 27.9%

Habits

Jo

Sugary Drink

Drinks one or more sugary drinks per day.

"Jo" Surname 22.0%

23andMe Users 21.1%

Wellness

Jo

Migraine

A severe headache characterized by intense pain, sensitivity to light and sound, and often accompanied by nausea and vomiting.

"Jo" Surname 16.1%

23andMe Users 16.4%

Are health conditions linked to the last name Jo?

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 Jo are shown below. Important Note: not everyone with a disease allele will develop these health condition

Celiac Disease

HLA-DQ8 variant

Celiac disease is an autoimmune condition in which the consumption of gluten (found in wheat, barley, and rye) can result in damage to the small intestine. Celiac disease can lead to both digestive and non-digestive problems. The 23andMe Health + Ancestry DNA test includes two common variants associated with an increased risk of developing this condition. Learn more about Celiac Disease

Korean 20.2%

23andMe Users 20.0%