Etymology and distribution of 下天摩.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
↑オフライン検索できるアプリもどうぞ
在日通名大全

日本初、在日通名の研究書「在日通名大全」発売中!
ネットの電話帳 住宅地図 マッポン!

下天摩さんの分布

Population

Distributions by prefecture
都道府県分布数図
Distributions by city
市区町村分布数図
Distributions by subregion
小地域分布数図
Whole Japan Prefectures
レベル3 1 Hokkaidou(About 50)
2 Iwate-ken(About 20)
3 Saitama-ken(About 10)
PopulationAbout 80
Ranking35,100
Rank by city
1 Kushiro-shi(About 20)
2 Iwate-gun Kuzumaki-machi(About 20)
3 Obihiro-shi(About 10)
3 Tokachishi-chou Urahoro-chou(About 10)
5 Takizawa-shi(Very rare)
5 Kitamoto-shi(Very rare)
5 Saitama-shi Minuma-ku(Very rare)
5 Sapporo-shi Kiyota-ku(Very rare)
5 Kushiroshi-chou Shiranuka-chou(Very rare)
Rank by subregion
1 北海道 釧路市 川東(About 10)

Distributions of ratios

Distributions of ratios by prefecture
都道府県分布比率図
Distributions of ratios by city
市区町村分布比率図
Distributions of ratios by subregion
小地域分布比率図
Whole Japan Prefectures
RatiosVery rare 1 Iwate-ken(0.00143%)
2 Hokkaidou(0.000768%)
3 Saitama-ken(0.000147%)
Rank by city
1 Iwate-gun Kuzumaki-machi(0.151%)
2 Tokachishi-chou Urahoro-chou(0.0855%)
3 Kushiroshi-chou Shiranuka-chou(0.0261%)
4 Takizawa-shi(0.00969%)
5 Kushiro-shi(0.00906%)
6 Kitamoto-shi(0.00671%)
7 Sapporo-shi Kiyota-ku(0.0046%)
8 Obihiro-shi(0.00437%)
9 Saitama-shi Minuma-ku(0.00355%)
Rank by subregion

Notable cities

Iwate-gun Kuzumaki-machi , Tokachishi-chou Urahoro-chou

マッポン! で分布を見る