As of 2025, the population of Costa Rica is approximately 5.15 million people (5 152 950), making it the 126th most populous country in the dataset of 217 countries, with a 0.06% share of the combined total.
Over the past five years the population of Costa Rica changed by +2.36%, and over the past ten years by +6.95%. By five-year growth, Costa Rica ranks 147th of 217 countries; in terms of momentum, growth is slowing — from +0.88% to +0.47% per year.
| Year | Population | Diff | Diff % | Share of Universe |
|---|