As of June 2026, the population of Belize is 427.7 thousand. The number of inhabitants has increased by 6 thousand in the last year, representing a growth of 1.36%. The median age of the population has increased in recent years, rising from 23.2 years in 2016 to 27.2 years in 2026. Currently, life expectancy at birth is 75.1 years and population density is 18.8 inhabitants per square kilometer.
The population growth rate of Belize peaked in 1997, reaching around 3.55% annually, but has since declined to approximately 1.33% in 2026. The annual increase in the number of people has also decreased from a peak of around 8.51 thousand in 2008 to nearly 5.69 thousand in 2026.
In Belize, life expectancy at birth has been increasing, with the indicator rising from 70.1 years in 2006 to 75.1 years in 2026, representing an increase de 5 years over the past 2 decades.
The cities of Belize are small, with the 5 most populated adding up to around 124 thousand inhabitants. The most populous city is Belize City, Belize District, con una diferencia significativa sobre las demás, alcanzando approximately 65.2 thousand inhabitants. It is followed by San Pedro, Belize District with 17.4 thousand and Orange Walk, Orange Walk District with 15.3 thousand.
These are the 20 most populous cities in Belize:
| # | City | Population |
|---|---|---|
| 1 | Belize City, Belize District | 65,222 |
| 2 | San Pedro, Belize District | 17,429 |
| 3 | Orange Walk, Orange Walk District | 15,298 |
| 4 | Belmopan, Cayo District | 13,381 |
| 5 | San Ignacio, Cayo District | 12,621 |
| 6 | Dangriga, Southern District | 9,927 |
| 7 | Corozal, Corozal District | 9,815 |
| 8 | Santa Elena, Cayo District | 8,587 |
| 9 | Ladyville, Belize District | 7,655 |
| 10 | Benque Viejo el Carmen, Cayo District | 7,160 |
| # | City | Population |
|---|---|---|
| 11 | Bella Vista, Toledo District | 6,259 |
| 12 | Trial Farm, Orange Walk District | 5,850 |
| 13 | Punta Gorda, Toledo District | 5,406 |
| 14 | Independence and Mango Creek, Southern District | 4,878 |
| 15 | Lord’s Bank, Belize District | 4,876 |
| 16 | Placencia, Southern District | 4,300 |
| 17 | Shipyard, Orange Walk District | 4,070 |
| 18 | Bullet Tree Falls, Cayo District | 3,932 |
| 19 | Guinea Grass, Orange Walk District | 3,821 |
| 20 | Sarteneja, Corozal District | 3,550 |