Etymology and distribution of 岩洞.
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| Whole Japan | Prefectures | |
|---|---|---|
| レベル | 2 |
1 Iwate-ken(About 30) 2 Fukuoka-ken(Very rare) 2 Oosaka-fu(Very rare) |
| Population | About 30 | |
| Ranking | Out of ranking | |
| Rank by city |
|---|
|
1 Kamaishi-shi(About 10) 2 Shimohei-gun Yamada-machi(About 10) 3 Fukuoka-shi Hakata-ku(Very rare) 3 Oofunato-shi(Very rare) 3 Sen'nan-gun Tajiri-chou(Very rare) |
| Rank by subregion |
|---|
|
1 岩手県 釜石市 片岸町第８地割(About 10) |
| Whole Japan | Prefectures | |
|---|---|---|
| Ratios | Very rare |
1 Iwate-ken(0.00171%) 2 Fukuoka-ken(Very rare) 3 Oosaka-fu(Very rare) |
| Rank by city |
|---|
|
1 Sen'nan-gun Tajiri-chou(0.0587%) 2 Shimohei-gun Yamada-machi(0.0335%) 3 Kamaishi-shi(0.0214%) 4 Oofunato-shi(0.00767%) 5 Fukuoka-shi Hakata-ku(0.00388%) |
| Rank by subregion |
|---|
