In June, Ministry of Health, Labour and Welfare released the birth rate of last year (2013). The data below shows the total fertility rate (birth rate) by prefecture in Japan in 2013.
Okinawa has the highest rate 1.94. The second is 1.72 of Miyazaki. So Okinawa is outstanding. Both are in the southern area of Japan.
Tokyo has the lowest rate 1.13, followed by big cities and the northern regions.
Figure: Total fertility rate by prefecture, 2013
Apparently the western regions have high numbers (= more birth).
Table: Total fertility rate by prefecture, 2013
|Prefecture||Total fertility rate|
Bold means prefectures which have a million population city. Italic means prefectures which are located in the northern area. Rates are lower in big cities and the northern area.
Source is Ministry of Health, Labour and Welfare. 平成25年人口動態統計月報年計（概数）の概況
Here is an appendix.
Figure: Total fertility rate by prefecture, 2012