Map where there are many single men and single women

It is a map created by National Geographic this February, which is the case in America, but it will be almost like this. Orange is female, blue is male. Apparently there are many women on the east coast.

I do not quite understand it up to age on this map, but in the livedoor news "German communication" in the past "Foreign male roundtable party I love Japanese women here, this is ear (first part)"Although it is well known that Americans are not interested overseas, there are few women who are wanting to live abroad for one year, for example, for women in their early twenties. To the west coast, there are many, but it is common. "There seems to be movement as it is.

So, I tried searching for maps that might be helpful for Japan.
Cover Japan map by gender ratio


It is more obvious than looking at fire, but men are concentrated in the metropolitan area. I do not know whether I am single, but if I concentrate so much it is inevitable that the single rate is also high.

In addition, in the case of overseas, there are various strange services that you can meet on the net considering such geographical bias. For example, like this.

Dates Nearby
http://www.datesnearby.net/


It is a service to get information on various dating profiles services and date it with someone in your neighborhood by mapping it on the map. In addition, there are such things that further narrowed down the application.

Geek 2 Geek - The best place on the net to meet geeks
http://www.gk2gk.com/


What is Geek (geek) ... ... so-called otaku.

What is geek - Hatena diary

It means a weird person in English, and it turned to mean otaku. In particular, it often points to computer geeks.

In other words, it is a service of directing the encounter of men and women of personal computer geeks. It is unknown how much achievement is achieved ... ....