28.49% of the population of West Seram Regency in 2023 was aged 0-14 years.

West Seram Regency's population, as of 2023, totals 214,980. This figure represents a continuous 16-year increase. Over the past five years, the Compound Annual Growth Rate (CAGR) has been 4.69%, exceeding the 0.28% growth rate of the preceding five years.

By age group, the productive age population (working age) accounts for 137,320 individuals (63.87%). Children (0-14 years) comprise 61,254 (28.49%), while the elderly population (65+) numbers 16,408 (7.63%).

Compared to other regencies/cities in Maluku Province, West Seram Regency ranks among the top five in terms of population size. Island-wide, it holds the fourth position.

The following data, sourced from the Central Bureau of Statistics (BPS) publication in December 2023, details the population by age group in West Seram Regency:

* Age 0-4 years: 14,730 (6.85%)
* Age 5-9 years: 22,920 (10.66%)
* Age 10-14 years: 23,610 (10.98%)
* Age 15-19 years: 24,520 (11.4%)
* Age 20-24 years: 22,650 (10.53%)
* Age 25-29 years: 17,190 (8%)
* Age 30-34 years: 14,280 (6.64%)
* Age 35-39 years: 15,130 (7.04%)
* Age 40-44 years: 14,340 (6.67%)
* Age 45-49 years: 11,500 (5.35%)
* Age 50-54 years: 9,900 (4.61%)
* Age 55-59 years: 7,820 (3.64%)
* Age 60-64 years: 6,370 (2.96%)
* Age 65-69 years: 4,190 (1.95%)
* Age 70-74 years: 2,640 (1.23%)
* Age 75 years and older: 3,210 (1.49%)