Kasumigaura land prices and five-year trend

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Published land transaction examples (2025)

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Population and households

Resident register, including Japanese and foreign residents. Population and households: January 1, 2026. Changes: calendar year 2025.

Annual rates compare January 1, 2026 with January 1, 2025; five-year rates compare with January 1, 2021. Population rates use the population at the start of each period; household rates use the household count.

Natural change

-483

Social change

-2

Natural change is births minus deaths. Social change includes migration and other resident-register adjustments. These figures do not establish a causal effect on land prices.

Source: MIC resident-register population survey (e-Stat)

Age composition

January 1, 2026. Resident register, including Japanese and foreign residents. Percentages use the total population as the denominator.

pp = percentage points. Differences of ±5.0 pp or more (as displayed) are bold for emphasis, not an indication of statistical significance.

Japan uses the same reference date and population definition. Differences are percentage points, calculated before rounding; pp means percentage points. These are current age shares, not changes over time.

Some foreign-resident age details are withheld in the source, including the Japan totals. The difference from the population total is shown separately, without allocating it to age groups. Age shares exclude these unpublished details.

Rounded percentages may not add up to 100%. Age composition alone does not establish housing demand or a causal effect on land prices.

Source: MIC resident-register population by age group (e-Stat)

Household income distribution

2023 Housing and Land Survey. Annual household income in JPY, not individual salary. Shares use main households with known income.

Figures refer to the municipal boundaries at the survey date (October 1, 2023), not necessarily today’s boundaries.

Differences of ±5.0 pp or more (as displayed) are bold. This is visual emphasis, not statistical significance.

Unknown-income residual (including rounding): local 8.1%, Japan 5.4%. Ranges exclude the upper limit. M = million yen; pp = percentage points.

These are sample-survey estimates, not a rating of residents or safety. Household size and age composition affect the distribution.

Source: Statistics Bureau, Housing and Land Survey (2023), Table 43-4