[OC] How Affordable Are Japan’s Major Cities? Housing + Food Burden

    by shirayuki653

    4 Comments

    1. Followed by the North America map, this is Part 2 of my Urban Stress Index (USI) series.

      The Urban Stress Index measures how much of a single full-time worker’s gross monthly salary is required to cover:

      • Rent (1-bedroom equivalent in the city centre) • Basic food costs
      For Japan, I focused on the 20 designated cities (政令指定都市).

      Methodology (Japan):
      Housing: Average rent of a 1DK unit in the ward where the city’s main JR station is located, extracted from SUUMO (In Japan, 1DK is the standard self-contained option for a single worker.)
      Income: Prefecture-level wages for general full-time workers (monthly cash earnings, bonus excluded). Source: Ministry of Health, Labour and Welfare (latest available data: 2024)
      Food: A proxy based on a low-cost Japanese set meal (Ootoya baseline)

      Key observations:
      Housing + food burden is relatively uniform (compressed) across Japanese cities;
      Greater Tokyo metro cities are slightly higher

      This index measures structural baseline pressure for a single full-time worker, so it does not account for taxes, family households, etc.

    2. Note: The 23 Special Wards of Tokyo are NOT designated cities, they are not included in this map

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