A world in perspective
123.4M
Reference period 2025 · people
World Bank · World Development Indicators
CompareFollow the selected indicator from its value to its history.
Displayed reference years run from 2023 to 2025. These are each indicator's published periods, not a single-year country snapshot. A comparison may use an older common period; follow Compare to check it.
The notes below use the currently published values. Years and sources may differ across indicators.
For Japan, the 2023 population growth rate of -0.482%/year indicates decline. Fertility below describes a period's childbearing pattern, while median age describes composition. Even same-year figures do not decompose causes; fertility alone cannot explain the population change.
49 years
Reference period: 2023 · UN DESA Population Division · World Population Prospects 2024
EstimatedMedian age differs from mean age. It locates the middle of the population, but does not directly give the older-age or working-age share.
1.208 births per woman
Reference period: 2023 · UN DESA Population Division · World Population Prospects 2024
EstimatedTotal fertility rate is not the year's number of births or the completed family size of women who have finished childbearing. It summarizes age-specific fertility in a period.
-0.482%/year
Reference period: 2023 · UN DESA Population Division · World Population Prospects 2024
EstimatedPositive values indicate growth and negative values decline. This is not a fertility rate; population change reflects births, deaths and international migration.
World Bank · World Development Indicators
Exact values by period are available in the table below.
| Reference period | Value | Quality |
|---|---|---|
| 2021 | 125,681,593 people | |
| 2022 | 125,124,989 people | |
| 2023 | 124,516,650 people | |
| 2024 | 123,975,371 people | |
| 2025 | 123,366,734 people |
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