24.82% of the population of Banggai Islands Regency in 2023 were aged 0-14 years.

In 2023, the majority of the population of Banggai Islands Regency was in the productive age group (15-59 years old), totaling 83,462 or 65.29% of the total population. Meanwhile, children (0-14 years old) and the elderly (over 60 years old) comprised 24.82% and 9.89%, respectively.

The population of Banggai Islands Regency was recorded at 126,040 as of June 2023. This figure increased compared to December 2021 and was higher than in December 2020. Over the past five years, the Compound Annual Growth Rate (CAGR) of the population in this region was 1.39%. This growth is higher than the growth in the previous five years, which was recorded at 0.66%.

Based on the total population of Central Sulawesi Province, this regency ranks 12th. When viewed by island, it ranks 64th.

The following is the population by age group in Banggai Islands Regency in June 2023, sourced from the Central Bureau of Statistics (BPS) publication:

* Age 0-4 years: 8,920 (7.07%)
* Age 5-9 years: 11,190 (8.88%)
* Age 10-14 years: 11,620 (9.22%)
* Age 15-19 years: 11,540 (9.16%)
* Age 20-24 years: 12,500 (9.92%)
* Age 25-29 years: 9,590 (7.61%)
* Age 30-34 years: 8,780 (6.97%)
* Age 35-39 years: 8,910 (7.07%)
* Age 40-44 years: 9,820 (7.79%)
* Age 45-49 years: 8,660 (6.87%)
* Age 50-54 years: 7,630 (6.06%)
* Age 55-59 years: 6,030 (4.78%)
* Age 60-64 years: 4,450 (3.53%)
* Age 65-69 years: 3,380 (2.68%)
* Age 70-74 years: 2,130 (1.69%)
* Age 75 years and over: 2,690 (2.13%)