Delhi is one of the most popular and capital city of India in North. Talking about the population of Delhi the population is increasing day by day and in the past five years, it is noted that the population is increased by 3.296 Million which is still expected to grow further. Get detailed information about its population density, growth, demography and important facts here. The population of Delhi in 2020 is 29.596 Million + 0.6592 Million = 30.2552 Million.