Japan • --:--:--
📅 Data last updated: May 20, 2026 • ⏱️ Counters calculate from this baseline
Important: These are model inputs, not a measured city age profile. Country-level birth, death and life-expectancy values are applied to the city baseline because city-level vital statistics are not available consistently for every location in this dataset.
The imported city population is the baseline observation used by this page. We do not present reconstructed historical city populations as observed facts because applying today's national birth/death rates backward would not account for migration, boundary changes or historical rate changes.
If current national birth and death rates stayed constant and migration were ignored, the model would produce 90,871 by 2030, 86,776 by 2040, and 82,866 by 2050. This is a scenario calculation, not an official forecast. It assumes constant rates and excludes migration, boundary changes, policy and economic shifts.
Ōbu is a city located in Japan. With an estimated population of 92,562 people, it represents a significant urban center within the country. The city operates in the Asia/Tokyo time zone (UTC+9:00), placing it among the cities that share this temporal region.
Demographically, Ōbu has a stable natural-change estimate. With a birth rate of 7 and a death rate of 11.6 per 1,000 residents annually, the population is slowly stable. The average life expectancy stands at 84.0 years, reflecting the overall health and living conditions in the region. The model estimates approximately 648 births and 1,074 deaths per year, resulting in a net change of -426 people per year.
The live counters on this page provide continuously updated estimates based on these annual rates, calculating births, deaths, and population changes from our baseline data date of 2026-05-20. These figures offer valuable insights into the demographic dynamics of Ōbu and its position within Japan's urban landscape.