Etymology and distribution of 天久保.

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!

天久保さんの分布

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2 1 Nagasaki-ken(About 10)
1 Oosaka-fu(About 10)
3 Fukuoka-ken(Very rare)
3 Chiba-ken(Very rare)
PopulationAbout 30
RankingOut of ranking
Rank by city
1 Matsuura-shi(About 10)
1 Oosaka-shi Sumiyoshi-ku(About 10)
3 Onga-gun Mizumaki-machi(Very rare)
3 Ichihara-shi(Very rare)
Rank by subregion
1 大阪府 大阪市住吉区 遠里小野(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 Nagasaki-ken(0.000515%)
2 Oosaka-fu(0.000115%)
3 Fukuoka-ken(Very rare)
4 Chiba-ken(Very rare)
Rank by city
1 Matsuura-shi(0.0265%)
2 Onga-gun Mizumaki-machi(0.0141%)
3 Oosaka-shi Sumiyoshi-ku(0.00732%)
4 Ichihara-shi(0.00181%)
Rank by subregion

マッポン! で分布を見る