Etymology and distribution of 築岡.

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
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Popuration of 築岡.

カンマ区切りで複数の名字を指定できます。

Etymology of 築岡

Distribution of 築岡
Ranking
1 Iwakuni-shi(About 30)
2 Okayama-shi(About 20)
3 Katsuta-gun Shouou-chou(About 10)
4 Toyonaka-shi(Very rare)
4 Kumage-gun Tabuse-chou(Very rare)
4 Tsuyama-shi(Very rare)
4 Hiroshima-shi Nishi-ku(Very rare)