| Rank | Country | Birth rate |
| Saint Martin | void |
219 | Saint Pierre and Miquelon | 8.32 births/1,000 population (2011 est.) |
140 | Saint Vincent and the Grenadines | 14.62 births/1,000 population (2011 est.) |
76 | Samoa | 22.5 births/1,000 population (2011 est.) |
211 | San Marino | 9.02 births/1,000 population (2011 est.) |
16 | Sao Tome and Principe | 38.03 births/1,000 population (2011 est.) |
97 | Saudi Arabia | 19.34 births/1,000 population (2011 est.) |
23 | Senegal | 36.73 births/1,000 population (2011 est.) |
208 | Serbia | 9.19 births/1,000 population (2011 est.) |
135 | Seychelles | 15.33 births/1,000 population (2011 est.) |
14 | Sierra Leone | 38.46 births/1,000 population (2011 est.) |
218 | Singapore | 8.5 births/1,000 population (2011 est.) |
| Sint Maarten | NA |
183 | Slovakia | 10.48 births/1,000 population (2011 est.) |
214 | Slovenia | 8.85 births/1,000 population (2011 est.) |
46 | Solomon Islands | 28.03 births/1,000 population (2011 est.) |
8 | Somalia | 42.71 births/1,000 population (2011 est.) |
93 | South Africa | 19.48 births/1,000 population (2011 est.) |
| South Georgia and the South Sandwich Islands | void |
| South Sudan | void |
| Southern Ocean | void |