In 2018, West Java's population dependency ratio was 47%.

West Java is a province with an area of 35,377.76 km² and a projected population of 48.6 million in 2018. Of this number, 33.16 million are of productive age (15-64 years old), and 15.52 million are of non-productive age (0-14 years old and 65+ years old). These figures are based on the 2013 Indonesian population growth projection conducted by the National Development Planning Agency (Bappenas), Statistics Indonesia (BPS), and the United Nations Population Fund (UNFPA).

The dependency ratio in West Java in 2018 was 46.8%. This means that for every 100 people of productive age, there are approximately 47 people of non-productive age who are dependent on the productive population. In 2020, the dependency ratio in West Java is projected to decrease to 46.4%. This means the burden on the productive age group to support the non-productive age group will decrease.

By gender, West Java has a larger male population compared to the female population. The male population is 24.6 million, while the female population is 24 million, resulting in a sex ratio of 103%. This means there are 103 males for every 100 females. By age group, the 0-4 year old group has the highest population in West Java, with 2.2 million males and 2.1 million females.