The latest officially reported population of Bulgaria was 6,444,366 in 2024 vs 8,642,022 people in Sierra Leone in 2024. In 2025, based on the adjusted UN estimation, the current Bulgaria's population is 6,403,235 people compared to 8,961,932 in Sierra Leone.
Population statistics:
- Sierra Leone's population is 1.4 times bigger than Bulgaria's.
- Bulgaria is ranked the 111th most populous country in the world, while Sierra Leone is the 102nd.
- The countries together account for 0.19% of the world: 0.08% for Bulgaria vs 0.11% for Sierra Leone.
- For the last 10 years, Bulgaria has had an average growth rate of -0.95% per year vs +2.32% in Sierra Leone.
- Since 2005, the population of Bulgaria has decreased from 7.66M people to 6.4M (16.4% decline), while Sierra Leone has grown from 5.5M to 8.96M (62.9% growth).
- Sierra Leone is projected to reach its peak in 2092 at 16M people, while Bulgaria's population already peaked in 1988 at 8.98M people and is projected to decrease to 3.37M people by 2100.
Bulgaria vs Sierra Leone: live population counter
Bulgaria
|
Sierra Leone
|
|
|---|---|---|
| Current population |
6403235
|
8961932
|
| Population rank | 111/197 | 102/197 |
| Percent of world population | 0.08% | 0.11% |
| One net population change |
3.93 hours
|
2.9 minutes
|
| One birth every |
9.16 minutes
|
2.03 minutes
|
| One death every |
5.19 minutes
|
7.5 minutes
|
| One migration net change every |
16.7 hours
|
47.8 minutes
|
| Annual migration change | +524 | -11,000 |
| Daily growth/decline | -6 | +497 |
| Annual growth/decline | -2,230 | +181,510 |
| Annual growth/decline rate | -0.03% | +2.15% |
| Population growth rate rank | 168/197 | 49/197 |
Bulgaria and Sierra Leone: population history and growth rate by year chart
Bulgaria
Population
Growth rate
Sierra Leone
Population
Growth rate
| Year | Population | Growth rate | ||
|---|---|---|---|---|
|
Bulgaria
|
Sierra Leone
|
Bulgaria
|
Sierra Leone
|
|
| 1960 | 7,867,374 | 2,268,356 | - | - |
| 1961 | 7,943,118 | 2,304,227 | 0.96% | 1.58% |
| 1962 | 8,012,946 | 2,342,242 | 0.88% | 1.65% |
| 1963 | 8,078,145 | 2,382,258 | 0.81% | 1.71% |
| 1964 | 8,144,340 | 2,424,390 | 0.82% | 1.77% |
| 1965 | 8,204,168 | 2,468,666 | 0.73% | 1.83% |
| 1966 | 8,258,057 | 2,514,638 | 0.66% | 1.86% |
| 1967 | 8,310,226 | 2,562,384 | 0.63% | 1.9% |
| 1968 | 8,369,603 | 2,611,532 | 0.71% | 1.92% |
| 1969 | 8,434,172 | 2,661,365 | 0.77% | 1.91% |
| 1970 | 8,489,574 | 2,712,286 | 0.66% | 1.91% |
| 1971 | 8,536,395 | 2,763,222 | 0.55% | 1.88% |
| 1972 | 8,576,200 | 2,814,388 | 0.47% | 1.85% |
| 1973 | 8,620,967 | 2,866,955 | 0.52% | 1.87% |
| 1974 | 8,678,745 | 2,920,459 | 0.67% | 1.87% |
| 1975 | 8,720,742 | 2,974,657 | 0.48% | 1.86% |
| 1976 | 8,758,599 | 3,028,820 | 0.43% | 1.82% |
| 1977 | 8,804,183 | 3,085,354 | 0.52% | 1.87% |
| 1978 | 8,814,032 | 3,145,517 | 0.11% | 1.95% |
| 1979 | 8,825,940 | 3,207,499 | 0.14% | 1.97% |
| 1980 | 8,861,535 | 3,272,089 | 0.4% | 2.01% |
| 1981 | 8,891,117 | 3,338,940 | 0.33% | 2.04% |
| 1982 | 8,917,457 | 3,408,183 | 0.3% | 2.07% |
| 1983 | 8,939,738 | 3,481,646 | 0.25% | 2.16% |
| 1984 | 8,960,679 | 3,558,758 | 0.23% | 2.21% |
| 1985 | 8,960,547 | 3,638,438 | -0.001% | 2.24% |
| 1986 | 8,958,171 | 3,728,380 | -0.03% | 2.47% |
| 1987 | 8,971,359 | 3,829,718 | 0.15% | 2.72% |
| 1988 | 8,981,446 | 3,934,517 | 0.11% | 2.74% |
| 1989 | 8,876,972 | 4,034,037 | -1.16% | 2.53% |
| 1990 | 8,718,289 | 4,196,828 | -1.79% | 4.04% |
| 1991 | 8,632,367 | 4,246,267 | -0.99% | 1.18% |
| 1992 | 8,540,164 | 4,166,366 | -1.07% | -1.88% |
| 1993 | 8,472,313 | 4,157,130 | -0.79% | -0.22% |
| 1994 | 8,443,591 | 4,173,105 | -0.34% | 0.38% |
| 1995 | 8,406,067 | 4,179,179 | -0.44% | 0.15% |
| 1996 | 8,362,826 | 4,199,210 | -0.51% | 0.48% |
| 1997 | 8,312,068 | 4,253,716 | -0.61% | 1.3% |
| 1998 | 8,256,786 | 4,295,785 | -0.67% | 0.99% |
| 1999 | 8,210,624 | 4,318,043 | -0.56% | 0.52% |
| 2000 | 8,170,172 | 4,423,611 | -0.49% | 2.44% |
| 2001 | 8,009,142 | 4,692,716 | -1.97% | 6.08% |
| 2002 | 7,837,161 | 4,971,435 | -2.15% | 5.94% |
| 2003 | 7,775,327 | 5,177,687 | -0.79% | 4.15% |
| 2004 | 7,716,860 | 5,355,717 | -0.75% | 3.44% |
| 2005 | 7,658,972 | 5,501,712 | -0.75% | 2.73% |
| 2006 | 7,601,022 | 5,624,466 | -0.76% | 2.23% |
| 2007 | 7,545,338 | 5,749,352 | -0.73% | 2.22% |
| 2008 | 7,492,561 | 5,894,722 | -0.7% | 2.53% |
| 2009 | 7,444,443 | 6,055,646 | -0.64% | 2.73% |
| 2010 | 7,395,599 | 6,222,714 | -0.66% | 2.76% |
| 2011 | 7,348,328 | 6,387,251 | -0.64% | 2.64% |
| 2012 | 7,305,888 | 6,551,080 | -0.58% | 2.56% |
| 2013 | 7,160,005 | 6,714,051 | -2% | 2.49% |
| 2014 | 7,073,572 | 6,876,385 | -1.21% | 2.42% |
| 2015 | 6,984,225 | 7,037,655 | -1.26% | 2.35% |
| 2016 | 6,894,139 | 7,205,328 | -1.29% | 2.38% |
| 2017 | 6,803,468 | 7,379,299 | -1.32% | 2.41% |
| 2018 | 6,710,798 | 7,554,563 | -1.36% | 2.38% |
| 2019 | 6,616,726 | 7,731,991 | -1.4% | 2.35% |
| 2020 | 6,550,696 | 7,912,558 | -1% | 2.34% |
| 2021 | 6,507,301 | 8,094,602 | -0.66% | 2.3% |
| 2022 | 6,465,097 | 8,276,807 | -0.65% | 2.25% |
| 2023 | 6,446,596 | 8,460,512 | -0.29% | 2.22% |
| 2024 | 6,444,366 | 8,642,022 | -0.03% | 2.15% |
| 2025 | 6,403,235 | 8,819,789 | -0.64% | 2.06% |
| 2026 | 6,358,515 | 8,996,743 | -0.7% | 2.01% |
| 2027 | 6,310,991 | 9,174,695 | -0.75% | 1.98% |
| 2028 | 6,261,580 | 9,349,021 | -0.78% | 1.9% |
| 2029 | 6,210,816 | 9,520,811 | -0.81% | 1.84% |
| 2030 | 6,158,806 | 9,694,851 | -0.84% | 1.83% |
| 2031 | 6,106,271 | 9,870,295 | -0.85% | 1.81% |
| 2032 | 6,054,057 | 10,047,193 | -0.86% | 1.79% |
| 2033 | 6,001,675 | 10,221,006 | -0.87% | 1.73% |
| 2034 | 5,948,975 | 10,391,485 | -0.88% | 1.67% |
| 2035 | 5,896,427 | 10,563,163 | -0.88% | 1.65% |
| 2036 | 5,843,557 | 10,734,341 | -0.9% | 1.62% |
| 2037 | 5,790,371 | 10,902,263 | -0.91% | 1.56% |
| 2038 | 5,737,870 | 11,066,143 | -0.91% | 1.5% |
| 2039 | 5,685,753 | 11,230,060 | -0.91% | 1.48% |
| 2040 | 5,633,818 | 11,398,391 | -0.91% | 1.5% |
| 2041 | 5,582,636 | 11,566,213 | -0.91% | 1.47% |
| 2042 | 5,532,405 | 11,728,787 | -0.9% | 1.41% |
| 2043 | 5,483,086 | 11,887,934 | -0.89% | 1.36% |
| 2044 | 5,434,397 | 12,049,424 | -0.89% | 1.36% |
| 2045 | 5,386,376 | 12,208,872 | -0.88% | 1.32% |
| 2046 | 5,338,852 | 12,363,446 | -0.88% | 1.27% |
| 2047 | 5,291,441 | 12,512,739 | -0.89% | 1.21% |
| 2048 | 5,244,419 | 12,659,609 | -0.89% | 1.17% |
| 2049 | 5,197,955 | 12,805,136 | -0.89% | 1.15% |
| 2050 | 5,151,745 | 12,948,320 | -0.89% | 1.12% |
From 2005 to 2015, the population of Bulgaria decreased by 674,747 people (a 8.81% decline), while Sierra Leone gained 1,535,943 people (a 27.9% growth).
For the next 10 years, from 2015 to 2025, Bulgaria lost -580,990 (a 8.32% decline), while Sierra Leone's population increased by 1,924,277 (a 27.3% growth).
Bulgaria was ranked 92nd most populous country in 2005 and is 111th in 2025. Sierra Leone was ranked 106th in 2005 and ranked 102nd now.
The UN's World Population Prospects forecasts that with changing growth rate trends in 25 years (in 2050) Bulgaria's population will shrink by 19.5% to 5,151,745 people with a rank change from 111th to 128th. The population of Sierra Leone will increase by 44.5% to 12,948,320 people and rank change from 102nd to 91st.
Biggest cities by population
Compare countries by 7 more topics
Population differences between Bulgaria and Sierra Leone
|
Bulgaria
|
Sierra Leone
|
|
|---|---|---|
| Life expectancy | 76 years | 62.2 years |
| Average age | 44.1 years | 24.4 years |
| Median age | 45.5 years | 20.5 years |
| Male:Female ratio | 48.4:51.6 | 49.9:50.1 |
| Fertility rate | 1.81 births per woman | 3.79 births per woman |
| Population density | 153.7 ppl/mi² | 310 ppl/mi² |
Population map with other countries
Population
Growth rate visualization in other countries
Growth rate
Relevant pages:
By topic
vs
comparisons:
Population comparisons
