Kouchi-ken , Oosaka-fu , Toukyou-to . Heterogeneity of 岩川 . In Kouchi-ken Shimanto-shi tells that Kagoshima-ken Eastern (old: Oosakuni) comes out and changed from Iwakawa surname. Estimated in the Edo period. 岩川 reference.
Toukyou-to , Kanagawa-ken . 岩谷 's variant. Shiga-ken Kouka-shi It was in the mouth of Mizuguchi-machi during the Edo period. Shimane - ken Ooda - shi Kawaicho Yoshinaga telling that he changed his name from Iwatani surname in the Edo period. 岩谷 reference.
| Whole Japan | Prefectures | |
|---|---|---|
| レベル | 3 |
1 Kyouto-fu(About 30) 2 Toukyou-to(About 20) 3 Hyougo-ken(About 10) 4 Kanagawa-ken(About 10) 4 Oosaka-fu(About 10) 6 Kagawa-ken(Very rare) 6 Shizuoka-ken(Very rare) 6 Saga-ken(Very rare) |
| Population | About 100 | |
| Ranking | 31,715 | |
| Rank by city |
|---|
|
1 Kyouto-shi Shimogyou-ku(About 10) 2 Ayabe-shi(About 10) 2 Toyonaka-shi(About 10) 2 Kameoka-shi(About 10) 2 Akashi-shi(About 10) 6 Setagaya-ku(Very rare) 6 Uji-shi(Very rare) 6 Kamakura-shi(Very rare) 6 Hiratsuka-shi(Very rare) 6 Choufu-shi(Very rare) |
| Rank by subregion |
|---|
|
1 京都府 京都市下京区 間之町正面下榎木(About 10) |
Inoma 【猪野間】レベル3
About 90, Inoma 【猪之間】レベル2
About 20 are variants.
Ima 【猪間】レベル3
About 100 are referenced.
