As of 2025, the population of Congo, Rep. is approximately 6.48 million people (6 484 437), making it the 110th most populous country in the dataset of 217 countries, with a 0.08% share of the combined total.
Over the past five years the population of Congo, Rep. changed by +12.72%, and over the past ten years by +27.21%. By five-year growth, Congo, Rep. ranks 30th of 217 countries; in terms of momentum, growth is stable — the recent five-year pace (+2.42% per year) is essentially unchanged from the previous five years (+2.45%).
| Year | Population | Diff | Diff % | Share of Universe |
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