The majority of the population in this region, or about 66.33%, are of working age, namely aged 15-59 years, totaling 26,554. According to a 2023 publication by the Central Bureau of Statistics (BPS), the number reached 26,554. The remaining population consists of those aged 0-14 years (children) at approximately 30.16%, and 3.51% are in the elderly group aged over 60 years.
The population of Mamberamo Raya Regency was recorded at 39,083 as of June 2023. This figure is an increase compared to December 2021 and higher than December 2020. Over the past five years, the Compound Annual Growth Rate (CAGR) of the population in this region was 10.89%. This growth is higher than the growth in the previous five years, which was recorded at 2.44%.
Compared to other districts/cities in Papua Province, the population of Mamberamo Raya Regency ranks 24th, while when grouped by island, this regency ranks 30th.
The following is the population by age in Mamberamo Raya Regency in June 2023, sourced from a publication by the Central Bureau of Statistics (BPS):
* Age 0-4 years: 2.52 thousand people (6.45%)
* Age 5-9 years: 4.63 thousand people (11.85%)
* Age 10-14 years: 4.92 thousand people (12.6%)
* Age 15-19 years: 4.62 thousand people (11.82%)
* Age 20-24 years: 4.3 thousand people (11.01%)
* Age 25-29 years: 3.56 thousand people (9.11%)
* Age 30-34 years: 3.44 thousand people (8.8%)
* Age 35-39 years: 2.95 thousand people (7.55%)
* Age 40-44 years: 2.62 thousand people (6.69%)
* Age 45-49 years: 2.22 thousand people (5.68%)
* Age 50-54 years: 1.52 thousand people (3.88%)
* Age 55-59 years: 1.33 thousand people (3.4%)
* Age 60-64 years: 0.86 thousand people (2.2%)
* Age 65-69 years: 0.31 thousand people (0.8%)
* Age 70-74 years: 0.14 thousand people (0.36%)
* Age 75 years and over: 0.09 thousand people (0.24%)