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Population Census 

Summary of Population by Place of Work or Schooling I

Population and Industry (Major Groups) of Employed Persons

A high ratio of day to night population in Tokyo-to and Osaka-fu and a low ratio in the adjacent prefectures

  The ratio of day to night population, for a resident population of 100 for the Tokyo-to (124.2) and Osaka-fu (106.1), was high in comparison to the adjacent prefectures of Saitama-ken (84.8), Nara-ken (86.0), Chiba-ken (86.3), Kanagawa-ken (89.4), where the ratio was under 90 and low.

A decreased daytime population in Chiyoda-ku and Chuo-ku in Tokyo and Chuo-ku in Osaka.

  The ratio of day to night population of the Ku-area of Tokyo was high in the centrally located wards such as Chiyoda-ku (2732.9), Chuo-ku (1098.4), Minato-ku (589.2), and Shinjuku-ku (292.1) .
  The top ten municipalities, i.e., Shi, Ku, Machi and Mura, with a high ratio of day to night population were the wards located in the Major cities. Of this group, the daytime population had decreased in eight wards, including Chiyoda-ku and Chuo-ku in Tokyo and Chuo-ku in Osaka (see Table 1).
  The majority of the municipalities that had a low ratio of day to night population were located in the outlying residential suburbs (see Table 1).
Table 1. Ranking of Municipalities According to Ratio of Day to Night Population - Resident Population Greater than 5,000 (1995)(Excel:31KB)

The growth rate of the migrant population in the Ku-area of Tokyo, Osaka-shi and Nagoya-shi has sharply decreased.

  The migrant population of commuters (students and workers) over the age of 15 who have migrated to the Ku-area of Tokyo from the municipalities is 3.69 millions of which approximately 80 percent are residents of the three adjacent prefectures of Saitama, Chiba, and Kanagawa.
  The growth rate of the migrant population in the Ku-area of Tokyo, Osaka-shi, and Nagoya-shi from 1990 to 1995 has sharply decreased in comparison to the growth rate during the period from 1985 to 1990 (see Table 2).
Table 2. Estimated Migrant Population Older than 15 Years in the Ku-area of Tokyo, Osaka-shi, and Nagoya-shi (1985 - 1995) (Excel:32KB)

The commuter population of workers and students over the age of 15 is 63.48 millions and the number commuting across prefecture boundaries continues to rise.

  The commuter population of workers and students in the other prefectures (6.19 millions) is approximately 10 percent of the total commuter population of workers and students over the age of 15 (63.48 millions) and it continues to rise (see Fig. 1).
  The prefectures with a high commuter population of workers and students include Nara (37.5%), Saitama (34.8%), Chiba (32.1%), and others (see Table. 3).
  Approximately two-thirds of the commuter population of workers and students in other prefectures are concentrated in the Tokyo area (Saitama-ken, Chiba-ken, Tokyo-to, Kanagawa-ken, see Fig. 2).
Table 3. Ratio of Students and the Employed over the Age of 15 According to Work and School Locations - Prefectures (1995) (Excel:35KB)


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