Independent insights into income, wages, population, household finances, and regional trends across Japan, based on publicly available statistics.
Using census data, we analyze Yokohama's 39.9% share of one-person households. The figures show the scale of living alone in the city and why housing and services must account for both younger and older single residents.
Using census data, we compare the share of residents aged 65 and over in six major Kanto cities. Kawasaki is the youngest by this measure, while Chiba City and Sagamihara have the highest aging rates.
Using census data, we analyze Yokohama's daytime/nighttime population ratio of 92.5%. Even as Japan's largest city by population, Yokohama has many Tokyo commuters—but it is also a major employment center in its own right.
Using census data, we analyze daytime and nighttime population in Tokyo's 23 wards. The resident population of 9.73 million rises to 12.35 million during the day, revealing the scale of a work center that draws about 2.61 million net commuters and students into central Tokyo.
Using census and population-projection data, we examine Sagamihara's population trends and consider how the planned Linear Chuo Shinkansen station at Hashimoto may affect the city's future.
Using census and population-projection data, we examine Chiba City's population trends, the role of Makuhari redevelopment, and the projected decline toward 2045.
Using census and population-projection data, we examine Saitama City's population trends more than two decades after the merger of Urawa, Omiya, and Yono and how the city has continued to grow.
Using census and population-projection data, we examine Kawasaki's age structure and net in-migration, and why the city continues to attract younger generations.
We compare financial assets held by households in their 30s across six major Kanto cities, an age when careers and child-rearing are often still in their early stages. Only three cities publish usable figures, so the results are treated as a limited reference comparison.
We compare financial assets for households in their 40s, when mortgage repayment and saving often overlap, across six major Kanto cities. Only three cities publish usable figures, so the comparison is limited accordingly.
We compare financial assets in Yokohama and Kawasaki, including about ¥18.34 million versus ¥22.16 million for households in their 60s, and examine why the city with the higher balance changes by age.
Using 2019 National Survey of Family Income, Consumption and Wealth data, we examine household financial assets in Sagamihara by age and the limits of interpreting wealth-building capacity from a city with relatively low household income.