What is the population of Japan?

The population of Japan is approximately 123,103,479 as of 2025, according to UN estimates.

What is the life expectancy in Japan?

Life expectancy at birth in Japan is 85.0 years as of 2025.

What is the fertility rate in Japan?

The total fertility rate in Japan is 1.23 children per woman as of 2025.

What is the median age in Japan?

The median age in Japan is 49.8 years as of 2025.

Japan

Today's demographic activity

Updated continuously for December 14, 2025 at 11:09:04 UTC

Births today

952

Deaths today

1,974

Net migration today

179

As of today, Japan has approximately 122,801,382 people. Estimated births today: 951; deaths: 1,973.

Watch Japan's population change in real time. These counters estimate births, deaths, and migration activity every second based on annual demographic rates.

Key terms

Real-time counters: — Live estimates derived from annual demographic rates evenly distributed throughout the year.
Natural change: — Net change from births minus deaths (excluding migration).
Net migration: — Balance of people moving into vs. leaving the country.
Population growth: — Total change combining births, deaths, and migration.

Understanding the live counters

These real-time estimates model demographic activity based on annual rates from 2025. The population is declining, changing by about 0.02 people every second.

Rates are averaged across the year, so actual daily counts will fluctuate.
Unexpected events (pandemics, disasters, policy changes) can shift these numbers quickly.
Migration plays a significant role in net change alongside births and deaths.

Source: UN World Population Prospects 2024. Historical estimates (1950–2024) and medium-variant projections (2025–2100).