Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7.9 billion in 2020. The UN projected population to keep growing, and estimates have put the total population at 8.6 billion by mid-2030, 9.8 billion by mid-2050 and 11.2 billion by 2100. However, some academics outside the UN have increasingly developed human population models that account for additional downward pressures on population growth; in such a scenario population would peak before 2100. Others have challenged many recent population projections as having underestimated population growth.

जनसंख्या वृद्धि किसी भी क्षेत्र में लोगों की संख्या बढ़ने को कहा जाता है।आगे भी इसकी संख्या में बढ़ाव की ही उम्मीद है और ये अंदाजा लगाया गया है कि 2030 के मध्य तक ये आबादी 8.6 अरब हो जाएगी और 2050 तक 9.8 अरब तक हो जाएगी। 2100 तक इसकी आबादी 11.2 अरब तक हो सकती है।