The figures include not only hams but general population in 2005. JA1 is the most densely populated area. It is amazing nearly one third of people are there. This tells you how easy to make contacts with some areas (ex. JA1) and how difficult to do with other area (ex. JA9). One out of three contacts with JA may be with JA1 station.
Where,
JA1 - | Tokyo (8,578,380 as of Jan. 1, 2007),
Yokohama (3,609,078 as of Apr. 1, 2007), Kawasaki (1,354,913 as of Apr. 1, 2007), Saitama (1,195,005 as of Apr. 1, 2007), Chiba (931,943 as of Apr. 1, 2007), Yokosuka |
JA2 - | Nagoya (2,223,787 as of Apr. 1, 2007),
Hamamatsu (820,336 as of Apr. 1, 2007), Shizuoka (710,449 as of Mar. 31, 2007), Gifu |
JA3 - | Osaka (2,637,115 as of Apr. 1, 2007),
Kobe (1,526,816 as of Apr. 1, 2007), Kyoto (1,467,285 as of Apr. 1, 2007), Sakai (832,959 as of Apr. 1, 2007), Wakayama, Nara |
JA4 - | Hiroshima (1,158,269 as of Mar. 31, 2007),
Okayama, Fukuyama, Kurashiki, Shimonoseki |
JA5 - | Matsuyama, Takamatsu, Kochi, Tokushima |
JA6 - | Fukuoka (1,414,747 as of Apr. 1, 2007,
Kita-kyushu (985,855 as of Apr. 1, 2007), Kumamoto, Kagoshima, Nagasaki, Oita, Miyazaki |
JA7 - | Sendai (1,022,712 as of Apr. 1, 2007),
Iwaki, Akita, Aomori, Fukushima, Morioka, Yamagata |
JA8 - | Sapporo (1,887,819 as of Apr. 1, 2007),
Asahikawa, Hakodate, Kushiro |
JA9 - | Kanazawa, Toyama, Fukui |
JA0 - | Niigata (802,359 as of Apr. 1, 2007),
Nagano |
JR6 - | Naha |
JD1 - | [no big cities] (2,336 as of Apr. 1, 2006) |