24.28% of Solok Regency's population in 2024 will be aged 0-14 years.

The majority of the population in this region, or approximately 62.98%, are of working age (15-59 years), totaling 258,890. According to a 2024 publication by the Central Bureau of Statistics (BPS), the number reached 258,890. The remaining population consists of those aged 0-14 years (children), approximately 24.28%, and 12.74% are in the elderly group (over 60 years old).

The population of Solok Regency as recorded in 2024 was 411,050. This figure is higher than in 2023 and December 2021. 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 2.07%.

Compared to other regions in West Sumatra Province, Solok Regency ranks sixth in nominal terms. In terms of island ranking, it is 53rd.

The following is the population by age in Solok Regency in June 2024, sourced from a publication by the Central Bureau of Statistics (BPS):

* Age 0-4 years: 24,210 (5.89%)
* Age 5-9 years: 36,730 (8.93%)
* Age 10-14 years: 38,860 (9.45%)
* Age 15-19 years: 33,600 (8.17%)
* Age 20-24 years: 38,620 (9.39%)

* Age 25-29 years: 33,050 (8.04%)
* Age 30-34 years: 27,680 (6.73%)
* Age 35-39 years: 28,430 (6.92%)
* Age 40-44 years: 29,940 (7.28%)
* Age 45-49 years: 26,440 (6.43%)
* Age 50-54 years: 22,160 (5.39%)
* Age 55-59 years: 18,970 (4.62%)
* Age 60-64 years: 17,380 (4.23%)
* Age 65-69 years: 14,990 (3.65%)
* Age 70-74 years: 10,140 (2.47%)
* Age 75 years and over: 9,860 (2.4%)