Population of Belgium 2009-2023, by age

In 2023, approximately 2.34 million people in Belgium were younger than 18, while roughly 2.31 million Belgian inhabitants were aged 65 years and older. In that year, most of the Belgian population was aged between 18 and 64 years old.

截至2023年，比利时共有约234万人年龄低于18岁，而65岁及以上的居民约为231万人。当年，比利时大部分人口年龄介于18至64岁之间。