The great social stratification is reflected in the language. There are nine very complex speech styles and many ways to express yourself, used depending on the social status of the interlocutor. This phenomenon does not occur on such a scale in any other language. The inhabitants of Jakarta are predominantly Javanese, who are the most numerous ethnic group in Indonesia. They speak Austronesian Javanese, having over a dozen dialects, but they also use the official one, indonezyjskim (Indonesian). They are mostly Muslim, but Christians also live here, hinduiści, Buddhists and Confucians (mostly Chinese). Regardless of the declaration of religion, many of them stick to old beliefs, cults and traditions. The inhabitants of this region are not obliged to follow strict regulations, to which Muslim women are subject in other Islam-dominated countries. They enjoy the same rights as men, do not cover the face, they study at universities. Polygamy is allowed, but it is rare, because it is contrary to the local tradition. A woman has the right to the so-called. conditional divorce, if she is mistreated by her husband, deprived of funds for maintenance, or he will leave the house for more than six months.
There are immigrants from Asia living in Jakarta, the most numerous of which are the Chinese. They are divided into two groups: Pernakau – born in Indonesia, assimilated with the local culture, speaking Austronesian languages and Totok – new immigrants communicating in Chinese. In the last three decades, Jakarta has experienced frequent riots, which always ended in a pogrom and destruction of property in the Chinese district of Glodok. The incidents had an economic background and were related to the dominance of the Chinese in the trade and services sector. It is estimated, that it is in their hands 3/4 national property. All political unrest in Indonesian history, civil wars and coups invariably ended in robbing wealthy Chinese. The reasons are to be looked for in this, that the newcomers gaining fortune sought contacts with people in power, they managed, advised on how to invest, thus associated with the regime. The Chinese, in turn, hold against the locals, that they always treated them instrumentally. They were even forbidden to officially use their own language. Glodok is probably the only Chinese district in the world, in which it is in vain to look for advertisements, advertisements and shop windows with Chinese characters.