Japan: population change due to coronavirus (COVID-19) spread in different regions

After the Japanese government declared a state of emergency on April 7 due to the spread of the coronavirus disease (COVID-19), the number of people going outside declined significantly across Japan. As of August 27, 2020, the number of people in Shibuya area in the center of Tokyo Prefecture was down by approximately 26 percent compared to January and February, when the number of infection cases were relatively low. When compared to right after the declaration on April 7 at 3 pm, the number of people outside increased by around 29 percent in the area.

Tokyo has been the prefecture with the highest number of COVID-19 patients since the end of March 2020. On May 25, the government lifted the state of emergency in all 47 prefectures in the country. The Tokyo prefectural government lifted the business suspension request as well for almost all the businesses on June 11.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.

Relative change in number of people spending time outside across Japan during the coronavirus (COVID-19) pandemic as of August 27, 2020

Characteristic	Compared with before the spread of infection	Compared with before the declaration of a state of emergency
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Release date

August 2020

More information

Region

Japan

Survey time period

August 27, 2020; at 3 pm

Supplementary notes

Numbers are based on anonymous mobile phone data provided by NTT Docomo's base stations.

The source provides following information: 1. These data show changes in the population in the area, not the amount of contact. Even in areas with a large population, the amount of contact could be low due to self-restraint to go out.
2. The population would not significantly decrease because there are certain residents in the residential areas.

The figures from "compared with before the spread of infection" are based on the value compared to the average value from January 18 to February 14 at 3 pm.

The figures from "compared with before declaration” are based on the change in the number of people compared with April 7 at 3 pm, when the emergency declaration was issued.

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