Bulgaria vs Singapore
Bulgaria has 5% more people than Singapore: 6,433,302 vs 6,111,175, a gap of 322,127. Singapore is growing faster (+1.22% vs −0.13% a year), adding about 74,771 people a year against −8,114. Using continuous exponential growth from the stated base year, if these rates held, Singapore would overtake Bulgaria in about 4 years (from the 2025 population bases, around 2029) — a projection, not a forecast. Bulgaria is the older society: 22.2% aged 65+ against 14.2% in Singapore. Singapore is 138.8× as densely populated (8,241.8 vs 59.4 people per km²). People in Singapore live 7.6 years longer on average (83.3 vs 75.8). GDP per capita is 4.9× higher in Singapore ($98,814 vs $20,328).
Country/territory population bases: World Bank 2025 (Bulgaria) and 2025 (Singapore); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Bulgaria vs Singapore — side by side
 Bulgaria |  Singapore | |
|---|---|---|
| Population | 6,433,3022025 | 6,111,1752025 |
| Growth rate / yr | −0.13%2025 | +1.22%2025 |
| Births per 1,000 | 8.32024 | 7.42024 |
| Deaths per 1,000 | 15.62024 | 6.02024 |
| Children per woman | 1.722024 | 0.972024 |
| Life expectancy | 75.8 yrs2024 | 83.3 yrs2024 |
| Aged 0–14 | 14.4%2025 | 11.7%2025 |
| Aged 65+ | 22.2%2025 | 14.2%2025 |
| Density | 59.4 /km²2023 | 8,241.8 /km²2023 |
| Area | 110,997 km²2023 | 728 km²2023 |
| Urban population | 74.2%2025 | 100.0%2025 |
| Net migration / yr | -2,9612025 | +16,8922025 |
| GDP per capita | $20,3282025 | $98,8142025 |
| Country population rank (available records) | #111 | #113 |
| Base / world population (World Bank 2025) | 0.08% | 0.07% |
Highlighted cell = the higher value (not "better"). Small print under each value is its own data year. Source: World Bank; country/territory population bases may have different years. These are not live counts.
Population since 1960
World Bank population history (not the separate UN WPP timeline). Bulgaria: 0.8× from 1960 to 2025; Singapore: 3.7× from 1960 to 2025. Left: absolute population. Right: each series indexed to its own first available year = 100; baseline years may differ.
More comparisons
Regions: Europe & Central Asia · East Asia & Pacific · rankings
Bulgaria: Bulgaria vs Nicaragua, Bulgaria vs Serbia, Bulgaria vs Republic of the Congo, Bulgaria vs El Salvador, Bulgaria vs Singapore, Bulgaria vs Denmark.
Singapore: Singapore vs Republic of the Congo, Singapore vs Bulgaria, Singapore vs El Salvador, Singapore vs Denmark, Singapore vs Lebanon, Singapore vs Liberia.
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