Belgium has about 11.8 million people in 2026. A recent estimate puts the population at 11,858,610 , while another 2026 source gives 11,774,642.

Quick Scoop

  • Approximate population: 11.8 million
  • One live estimate: 11,858,610
  • Another 2026 estimate: 11,774,642

The exact number changes a bit depending on the source and date, but 11.8 million is the right ballpark.