Koki last name popularity, history, and meaning

Find out how popular the last name Koki is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Koki.

Meaning of Koki

A Japanese surname derived from the word "koku", meaning grain or crop.

Koki, 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 Koki surname is from the 2010 census data.

Popularity of Koki in America

Koki is the 74826th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Koki surname appeared 258 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 Koki.

We can also compare 2010 data for Koki 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 74826 75466 -0.85%
Count 258 238 8.06%
Proportion per 100k 0.09 0.09 0.00%

The history of the last name Koki

The surname KOKI is believed to have originated in Japan during the 16th century. It is derived from the Japanese word "koku," which means happiness or good fortune. The name was likely given to families or individuals who were considered to be blessed or fortunate.

In the early 1600s, the name KOKI appeared in several historical records and manuscripts in the Kyoto region of Japan. One of the earliest recorded instances was in a document from the Nijo Castle archives, which mentioned a samurai named Koki Takahashi who served under the Tokugawa shogunate.

During the Edo period (1603-1868), the KOKI surname was found in various parts of Japan, particularly in the regions of Kanto and Chubu. Some notable individuals from this era included Koki Matsumoto (1635-1712), a renowned scholar and calligrapher, and Koki Suzuki (1674-1739), a prominent Buddhist monk and teacher.

In the 19th century, the KOKI name was associated with several place names and villages in the Shizuoka and Aichi prefectures. For example, the village of Koki-mura (now part of Hamamatsu City) was named after a prominent KOKI family who had settled in the area.

One of the most famous individuals with the KOKI surname was Koki Hirota (1878-1948), a Japanese politician and diplomat who served as Prime Minister of Japan from 1936 to 1937. He was convicted of war crimes after World War II and executed by hanging in 1948.

Other notable individuals with the KOKI surname include Koki Mitani (1892-1975), a celebrated Japanese novelist and playwright; Koki Koike (1915-1999), a renowned Kabuki actor; and Koki Eto (born 1954), a former professional baseball player and manager in Japan.

Throughout history, the KOKI surname has undergone various spelling variations, such as Kouki, Kooky, and Kokey, but the original kanji characters (幸樹) have remained largely unchanged.

Race and ethnic origin of people with the last name Koki

We also have some data on the ancestry of people with the surname Koki.

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:

  1. White only
  2. Black only
  3. American Indian and Alaskan Native only
  4. Asian and Pacific Islander only
  5. Hispanic
  6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Koki was:

Race/Ethnicity Percentage Total Occurrences
Non-Hispanic White Only 16.67% 43
Non-Hispanic Black Only 2.33% 6
Non-Hispanic Asian and Pacific Islander Only 53.49% 138
Non-Hispanic American Indian and Alaskan Native 0.00% 0
Non-Hispanic of Two or More Races 22.87% 59
Hispanic Origin 4.65% 12

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 Koki has changed in the 10 years between the two census surveys.

2010 2000 Change (%)
White 16.67% 15.97% 4.29%
Black 2.33% 2.94% -23.15%
Asian and Pacific Islander 53.49% 67.65% -23.38%
American Indian and Alaskan Native 0.00% 0.00% 0.00%
Two or More Races 22.87% 10.92% 70.73%
Hispanic 4.65% 2.52% 59.41%

Data source

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 Koki was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Koki, please contact us.

Reference this page

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If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

"Koki last name popularity, history, and meaning". NameCensus.com. Accessed on April 30, 2025. http://namecensus.com/last-names/koki-surname-popularity/.

"Koki last name popularity, history, and meaning". NameCensus.com, http://namecensus.com/last-names/koki-surname-popularity/. Accessed 30 April, 2025

Koki last name popularity, history, and meaning. NameCensus.com. Retrieved from http://namecensus.com/last-names/koki-surname-popularity/.

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