As of 2025, the population of Northern Mariana Islands is approximately 0.04 million people (43 541), making it the 207th most populous country in the dataset of 217 countries, with a 0.00% share of the combined total.
Over the past five years the population of Northern Mariana Islands changed by -8.39%, and over the past ten years by -15.48%. By five-year growth, Northern Mariana Islands ranks 211th of 217 countries; in terms of momentum, the decline is accelerating — from -1.60% to -1.74% per year.
| Year | Population | Diff | Diff % | Share of Universe |
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