19.34% of Soppeng Regency's population in 2023 was aged 0-14 years.

The majority of the population in this region, or about 63.34%, are of working age, i.e., aged 15-59 years, totaling 152,630. According to a 2023 publication by the Central Statistics Agency (BPS), the number reached 152,630. The remaining population consists of those aged 0-14 years (children), approximately 19.34%, and 17.31% are in the elderly group aged over 60 years.

The population of Soppeng Regency was recorded at 240,660 as of June 2023. This figure is higher than in December 2021 and December 2020. Compared to the previous five years, the region's Compound Annual Growth Rate (CAGR) is higher. The growth over the last five years was recorded at 1.2%.

Based on the total population of South Sulawesi Province, this regency ranks 18th. When grouped by island, it ranks 35th.

The following is the population by age group in Soppeng Regency in June 2023, sourced from a publication by the Central Statistics Agency (BPS):

* Age 0-4 years: 13,150 (5.46%)
* Age 5-9 years: 15,690 (6.52%)
* Age 10-14 years: 17,760 (7.38%)
* Age 15-19 years: 18,600 (7.73%)
* Age 20-24 years: 20,550 (8.54%)
* Age 25-29 years: 18,250 (7.59%)
* Age 30-34 years: 14,960 (6.21%)
* Age 35-39 years: 14,530 (6.04%)
* Age 40-44 years: 16,240 (6.75%)
* Age 45-49 years: 16,540 (6.87%)
* Age 50-54 years: 18,200 (7.56%)
* Age 55-59 years: 14,750 (6.13%)
* Age 60-64 years: 12,340 (5.13%)
* Age 65-69 years: 9,900 (4.11%)
* Age 70-74 years: 7,510 (3.12%)
* Age 75 years and over: 11,980 (4.98%)