24.29% of Kaur Regency's population in 2023 was aged 0-14 years.

In 2023, the majority of Kaur Regency's population was of productive age (15-59 years old), totaling 88,213 or 65.81% of the total population. Children (0-14 years old) and the elderly (over 60 years old) comprised 24.29% and 9.91%, respectively.

Kaur Regency's population was recorded at 132,830 in 2023. Over the past 11 years, the population has steadily increased. Compared to the previous five years, the Compound Annual Growth Rate (CAGR) of this region was higher. The growth rate over the last five years was recorded at 2.29%.

Nominally, compared to other regions in Bengkulu Province, this regency/city ranks eighth; while nationally, it ranks 133rd.

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

* Age 0-4 years: 8,780 (6.61%)
* Age 5-9 years: 11,770 (8.86%)
* Age 10-14 years: 12,010 (9.04%)
* Age 15-19 years: 12,110 (9.12%)

* Age 20-24 years: 11,600 (8.73%)
* Age 25-29 years: 9,940 (7.49%)
* Age 30-34 years: 9,970 (7.50%)
* Age 35-39 years: 10,400 (7.83%)
* Age 40-44 years: 10,660 (8.02%)
* Age 45-49 years: 9,420 (7.09%)
* Age 50-54 years: 7,760 (5.85%)
* Age 55-59 years: 6,340 (4.78%)
* Age 60-64 years: 5,160 (3.89%)
* Age 65-69 years: 3,370 (2.53%)
* Age 70-74 years: 2,130 (1.61%)
* Age 75 years and over: 2,620 (1.97%)