Iran: there are 17% more people than in 2010, but 12% fewer births a year
From 2010 to 2023 the population grew from 77.4M to 90.6M, while annual births fell from 1.34M to 1.17M. Half the residents are now older than 32.9 (26.1 in 2010).
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A population can grow while fewer babies are born: people live longer, some arrive from abroad, and large earlier generations reach parenting age. These series do not show which of these matters most.
One percentage scale relative to 2010: 0% is the starting value, +100% is a doubling, −50% is a halving. Lines show the yearly path; on a short screen, bars show the change to 2023. Equal distances mean equal relative changes. For shares, this is relative change, not percentage points. Gaps are not filled; original values and units are below.
- Population thousand persons, 1 July
77,421 (2010) → 90,609 (2023)
- Births thousand births per year
1,338 (2010) → 1,173 (2023)
- Median age years
26.1 (2010) → 32.9 (2023)
Start: 2010; end: the latest year up to 2023 with every series (2023). Published values, no gap filling or smoothing. Births and children per woman come from the same source at both ends: UN estimates are not compared with national statistics, whose level differs. Thresholds select a story and do not establish statistical significance.
Population is a mid-year estimate; births are counted over the year. The median age splits residents into two equal halves, younger and older.
A question for this picture
Where did the extra residents come from if fewer babies are born: longer lives or more arrivals?