日本国内ではハプログループD1bと並んで多くの地域で多数派を占める。
*[[沖縄]] 19沖縄 19.4%([[沖縄県立開邦高等学校]])(沖縄県立開邦高等学校)<ref name = "Totsuka2016">Shoji Totsuka, The Super Science High School Consortium, Youichi Sato, and Masashi Tanaka, "A study of the geographic distribution of Y chromosomal and mitochondrial DNA haplogroups in Japanese population by Super Science High School Consortium (SSH)." ''Anthropological Science (Japanese Series)'' Vol. 124(2), 85–91, 2016.</ref>、22.2%<ref name = "Hammer2006" />、23.0%<ref name = "Nonaka2007">Nonaka I, Minaguchi K, Takezaki N (July 2007). "Y-chromosomal binary haplogroups in the Japanese population and their relationship to 16 Y-STR polymorphisms". ''Ann. Hum. Genet.'' 71 (Pt 4): 480–95. doi:10.1111/j.1469-1809.2006.00343.x. PMID 17274803.</ref>、26.5%([[沖縄県立八重山高等学校]]及び[[沖縄県立八重山商工高等学校]])(沖縄県立八重山高等学校及び沖縄県立八重山商工高等学校)<ref name = "Totsuka2016" />、28.9%([[沖縄県立宮古高等学校]])(沖縄県立宮古高等学校)<ref name = "Totsuka2016" />*[[九州]] 27九州 27.1%([[佐賀県立致遠館高等学校]])(佐賀県立致遠館高等学校)<ref name = "Totsuka2016" />、32.1%<ref name = "Hammer2006" />、34.0%([[長崎市]])(長崎市)<ref name="Sato2014">{{cite journal | vauthors = Sato Y, Shinka T, Ewis AA, Yamauchi A, Iwamoto T, Nakahori Y | year = , 2014| title = , Overview of genetic variation in the Y chromosome of modern Japanese males | journal = , Anthropological Science | volume = , 122 | issue = , 3| pages = 131–136 | , page131–136 , doi = :10.1537/ase.140709 | doi-access=free}}</ref>、35.3%([[福岡市]])(福岡市)<ref name = "Sato2014" />*[[徳島]] 30徳島 30.0%<ref name = "Hammer2006" />、33.5%<ref name = "Sato2014" />
*[[大阪市]] 28.2%<ref name = "Sato2014" />
*[[金沢市]] 28.0%(成人男性)<ref name = "Sato2014" />、32.6%(学生)<ref name = "Sato2014" />