Total Fertility Rate (TFR) and Demographic Transition
Total Fertility Rate (TFR) is the average number of children a woman would have over her lifetime if current age-specific birth rates prevailed. A TFR of 2.1 is the "replacement level" — the rate at which a population exactly replaces itself over generations. India's national TFR has fallen to approximately 2.0 (NFHS-5, 2019-21), but there is a stark north-south divergence.
- National TFR (NFHS-5, 2019-21): 2.0 — India is at or below replacement level nationally
- Tamil Nadu TFR: ~1.3 (2024 estimates) — among the lowest in the world
- Kerala TFR: ~1.5; Karnataka: ~1.6; Telangana: ~1.7; Andhra Pradesh: ~1.7
- Contrast: Bihar TFR ~3.0; UP TFR ~2.4 (still above replacement)
- Demographic dividend: The period when the working-age population (15–64 years) is larger than dependents — India is in this phase nationally until approximately 2040
- Demographic burden: Southern states are prematurely exiting the dividend phase and entering ageing — Kerala already has significant elderly population proportions comparable to some European states
● Tracked since March 30, 2026 · last seen May 31, 2026 · updates as the daily brief publishes
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