As of May 2026, the population of Liberia is 5.8 million. The number of inhabitants has increased by 123 thousand in the last year, representing a growth of 2.16%. The median age of the population has increased in recent years, rising from 17.5 years in 2016 to 19 years in 2026. Currently, life expectancy at birth is 62.7 years and population density is 60 inhabitants per square kilometer.
The population growth rate of Liberia peaked in 1997, reaching around 14.36% annually, but has since declined to approximately 2.13% in 2026. The annual increase in the number of people has also decreased from a peak of around 341.63 thousand in 1997 to nearly 123 thousand in 2026.
In Liberia, life expectancy at birth has been increasing, with the indicator rising from 57.6 years in 2006 to 62.7 years in 2026, representing an increase of more than 5 years over the past 2 decades.
The cities of Liberia are small, with the 5 most populated adding up to around 1.8 million inhabitants. The most populous city is Monrovia, Montserrado County, con una diferencia significativa sobre las demás, alcanzando approximately 1.5 million inhabitants. It is followed by Gbarnga, Bong County with 86 thousand and Buchanan, Grand Bassa County with 75.9 thousand.
These are the 20 most populous cities in Liberia:
| # | City | Population |
|---|---|---|
| 1 | Monrovia, Montserrado County | 1,542,549 |
| 2 | Gbarnga, Bong County | 86,031 |
| 3 | Buchanan, Grand Bassa County | 75,854 |
| 4 | Kakata, Margibi County | 52,247 |
| 5 | Zwedru, Grand Gedeh County | 38,269 |
| 6 | Harbel, Margibi County | 38,208 |
| 7 | Harper, Maryland County | 35,503 |
| 8 | Pleebo City, Maryland County | 35,423 |
| 9 | Foya Kamara, Lofa County | 31,052 |
| 10 | New Yekepa, Nimba | 24,695 |
| # | City | Population |
|---|---|---|
| 11 | Voinjama, Lofa County | 23,051 |
| 12 | Tubmanburg, Bomi County | 22,005 |
| 13 | Saclepea, Nimba | 20,818 |
| 14 | Greenville, Sinoe County | 20,184 |
| 15 | Sanniquellie, Nimba | 17,895 |
| 16 | Ganta, Nimba | 13,802 |
| 17 | Karnplay, Nimba | 8,431 |
| 18 | Zorzor, Lofa County | 8,419 |
| 19 | River Gbeh, River Gee County | 7,313 |
| 20 | Fish Town, River Gee County | 5,383 |