Largest population
Russia has 143,394,458 people in the 2026 medium projection.
283,704,971 people in 2026 (projected), a UN subregion of Europe with 10 countries and areas.
2026 · Share of total by five-year age group and sex
Hover over or tap a bar to see exact values.
The UN series provides historical estimates through 2023. Figures from 2024 onward—including 2026—are medium-scenario projections, not counts or predictions guaranteed to occur.
In 2026, children under 15 make up 15.6% of Eastern Europe’s projected population, compared with 19.3% aged 65 or older. The conventional working-age group, 15–64, accounts for 65.1%.
By 2050, the medium scenario places the population at 255,659,220—a 10% decrease from 2026. The 65+ share is projected to reach 26.4%.
The subregion is projected to record 2,279,798 births and 3,637,493 deaths in 2026, a natural decrease of 1,357,695, with net migration of +282,150. Deaths have exceeded births every year since 1992. Between 2000 and 2023, cumulative net migration was +1,809,353.
Annual values; dashed lines after 2023 are the UN medium projection.
Mid-year population for every year; the medium scenario reaches 255.7M in 2050.
A regional pyramid is an aggregate, not a description of every country. The profiles within Eastern Europe range from a median age of 39.1 years in Moldova to 45.0 years in Bulgaria. Those age structures imply different balances of schools, working-age cohorts, and older-age services.
Russia has 143,394,458 people in the 2026 medium projection.
Moldova has a median age of 39.1 years and 19.2% under 15.
Slovakia has projected annual growth of -0.2%.
| Rank | Country or area | 2026 population | Median age | Under 15 | 65+ |
|---|---|---|---|---|---|
| 1 | Russia | 143,394,458 | 40.7 | 16.7% | 18.4% |
| 2 | Ukraine | 39,535,848 | 41.8 | 13.4% | 19.1% |
| 3 | Poland | 37,843,188 | 43.0 | 14.1% | 21.3% |
| 4 | Romania | 18,800,605 | 43.5 | 15.4% | 20.2% |
| 5 | Czechia | 10,527,780 | 44.3 | 14.8% | 21.4% |
| 6 | Hungary | 9,585,818 | 44.2 | 14.3% | 21.3% |
| 7 | Belarus | 8,937,018 | 41.8 | 15.5% | 18.9% |
| 8 | Bulgaria | 6,667,660 | 45.0 | 14.3% | 22.5% |
| 9 | Slovakia | 5,451,342 | 42.8 | 15.4% | 19.5% |
| 10 | Moldova | 2,961,253 | 39.1 | 19.2% | 17.4% |
Regional age groups and totals come directly from the UN WPP 2024 medium series. Country groupings follow the UN M49 regions and subregions used in the source; territories and statistical areas may appear separately. Projection results depend on future fertility, mortality, and migration assumptions.
The UN WPP 2024 medium scenario projects Eastern Europe's 2026 population at 283,704,971.
Russia is the largest profile in this regional directory, with a projected 2026 population of 143,394,458.
The medium scenario shows a 9.9% decrease between 2026 and 2050.