| Source | UN (World Population Prospects 2019) |
| Date | 09 Dec 2021 |
As of 2021, the population of Sao Tome and Principe is projected at 0.223 million, up by 1.92% compared with 0.219 million in 2020. Sao Tome and Principe is ranked 187th in terms of population and 53rd in terms of population growth rate.
There are 6.83 thousand births in Sao Tome and Principe in 2021. That is 19 per day, which is ranked 176th. The crude birth rate is 30.52 per 1000 people. There are 1.04 thousand deaths in Sao Tome and Principe in 2021. That is 3 per day, which is ranked 191st. The crude death rate is 4.66 per 1000 people.
0.17 million people are living in urban areas, which is 75.07% of Sao Tome and Principe population. Sao Tome and Principe is ranked 85th in terms of urbanization.
The Sex Ratio in Sao Tome and Principe in 2021 is 100.17 males per 100 females. There are 111.78 thousand males and 111.59 thousand females in Sao Tome and Principe. The percentage of female population is 49.96% compare to 50.04% male population. Sao Tome and Principe has 194 more females than males. Sao Tome and Principe is at 132 nd position out of 201 countries/territories in terms of female to male ratio.
| Year | Population | Growth (%) |
|---|---|---|
| 1950 | 59,998 | - |
| 1955 | 58,807 | 0.94 |
| 1960 | 64,294 | 1.24 |
| 1965 | 64,884 | 0.94 |
| 1970 | 74,570 | 2.85 |
| 1975 | 83,134 | 2.45 |
| 1980 | 95,788 | 2.49 |
| 1985 | 104,926 | 2.04 |
| 1990 | 119,211 | 2.49 |
| 1995 | 131,679 | 1.74 |
| 2000 | 142,264 | 1.64 |
| 2005 | 157,472 | 2.43 |
| 2010 | 180,372 | 2.56 |
| 2015 | 199,439 | 1.90 |
| 2016 | 203,221 | 1.90 |
| 2017 | 207,086 | 1.90 |
| 2018 | 211,032 | 1.91 |
| 2019 | 215,048 | 1.90 |
| 2020 | 219,161 | 1.91 |
| 2021 | 223,364 | 1.92 |
| Year | Total | Crude(per 1000) | ||
|---|---|---|---|---|
| Death | Birth | Crude death | Crude birth | |
| 1950 | 1,310 | 2,805 | 22.28 | 47.75 |
| 1955 | 1,179 | 2,878 | 19.53 | 47.70 |
| 1960 | 1,121 | 2,997 | 17.81 | 47.67 |
| 1965 | 986 | 3,003 | 14.82 | 45.05 |
| 1970 | 947 | 3,065 | 12.74 | 41.51 |
| 1975 | 963 | 3,450 | 11.52 | 41.02 |
| 1980 | 994 | 3,916 | 10.45 | 41.30 |
| 1985 | 1,169 | 4,325 | 11.02 | 40.79 |
| 1990 | 1,314 | 4,756 | 11.06 | 40.05 |
| 1995 | 1,383 | 5,175 | 10.53 | 39.43 |
| 2000 | 1,294 | 5,661 | 9.05 | 39.59 |
| 2005 | 1,138 | 6,162 | 7.17 | 38.81 |
| 2010 | 1,051 | 6,456 | 5.85 | 36.00 |
| 2015 | 1,021 | 6,579 | 5.11 | 32.95 |
| 2020 | 1,034 | 6,764 | 4.71 | 30.81 |
| 2021 | 1,043 | 6,830 | 4.66 | 30.52 |
| Year | Population | Urbanization | ||
|---|---|---|---|---|
| Urban | Rural | growth rate (%) | Urban (%) | |
| 1950 | 8,094 | 51,908 | - | 13.490 |
| 1955 | 8,661 | 50,122 | 2.73 | 14.735 |
| 1960 | 10,327 | 53,926 | 2.98 | 16.073 |
| 1965 | 14,147 | 50,649 | 7.56 | 21.833 |
| 1970 | 21,918 | 52,335 | 8.90 | 29.518 |
| 1975 | 26,136 | 56,471 | 3.59 | 31.639 |
| 1980 | 31,791 | 63,158 | 3.64 | 33.482 |
| 1985 | 39,432 | 64,202 | 4.67 | 38.049 |
| 1990 | 49,713 | 64,180 | 4.76 | 43.648 |
| 1995 | 61,496 | 64,958 | 4.05 | 48.631 |
| 2000 | 74,049 | 64,557 | 3.86 | 53.424 |
| 2005 | 92,078 | 63,552 | 4.52 | 59.165 |
| 2010 | 113,520 | 61,256 | 4.13 | 64.952 |
| 2015 | 137,228 | 58,325 | 3.66 | 70.174 |
| 2020 | 162,101 | 55,910 | 3.22 | 74.354 |
| 2021 | 167,201 | 55,517 | 3.15 | 75.073 |
| Age group | Male | Female | Total | M per 100 F | |
|---|---|---|---|---|---|
| Persons | Share (%) | ||||
| 00-04 | 16,187 | 15,808 | 31,995 | 14.32 | 102.398 |
| 05-09 | 15,563 | 15,226 | 30,789 | 13.78 | 102.213 |
| 10-14 | 14,860 | 14,563 | 29,423 | 13.17 | 102.039 |
| 15-19 | 13,020 | 12,754 | 25,774 | 11.54 | 102.086 |
| 20-24 | 9,880 | 9,652 | 19,532 | 8.74 | 102.362 |
| 25-29 | 7,683 | 7,500 | 15,183 | 6.80 | 102.440 |
| 30-34 | 7,095 | 6,976 | 14,071 | 6.30 | 101.706 |
| 35-39 | 6,428 | 6,288 | 12,716 | 5.69 | 102.226 |
| 40-44 | 5,709 | 5,712 | 11,421 | 5.11 | 99.947 |
| 45-49 | 3,959 | 4,060 | 8,019 | 3.59 | 97.512 |
| 50-54 | 3,638 | 3,744 | 7,382 | 3.30 | 97.169 |
| 55-59 | 2,680 | 3,009 | 5,689 | 2.55 | 89.066 |
| 60-64 | 2,096 | 2,371 | 4,467 | 2.00 | 88.402 |
| 65-69 | 1,325 | 1,614 | 2,939 | 1.32 | 82.094 |
| 70-74 | 832 | 986 | 1,818 | 0.81 | 84.381 |
| 75-79 | 442 | 599 | 1,041 | 0.47 | 73.790 |
| 80-84 | 264 | 443 | 707 | 0.32 | 59.594 |
| 85-89 | 94 | 197 | 291 | 0.13 | 47.716 |
| 90-94 | 21 | 71 | 92 | 0.04 | 29.577 |
| 95-99 | 3 | 11 | 14 | 0.01 | 27.273 |
| 100+ | 0 | 1 | 1 | 0.00 | 0.000 |
| Total | 111,779 | 111,585 | 223,364 | 100.174 | |