World Population Stats and Live Demographic Estimate

The UN doesn't actually count every person every second. Instead, demographers combine national censuses, birth and death registries, and migration data to estimate the population on a reference date (1 July each year) and project forward.

The ticker interpolates between successive mid-year population points. Births and deaths use separately dated calendar-year projections, spread uniformly through the year.

Total population — interpolation between dated UN mid-year projections.
Births today — running count since 00:00 UTC, using the 2026 projected 132,503,469 annual births (about 4.202 per second).
Deaths today — running count since 00:00 UTC, using the 2026 projected 63,637,314 annual deaths (about 2.018 per second).
Net today — births minus deaths so far today.

Real-world births and deaths aren't evenly distributed across the day, so treat these as smooth averages, not exact moments.

Population growth shapes nearly every long-term human concern: food and water demand, energy use, urbanisation, schooling, healthcare, and climate impact. Watching the rate slow down over time tells the demographic transition story more clearly than any single year.