Algerian Arabic (Dziria / دزيرية) is natively known as Dziria, Darja or Derja. It is mostly intelligible with the Tunisian and Moroccan dialects. Algerian Arabic is the native dialect of 75%- 80% of Algerians. There are approximately 31 million speakers of Algerian Arabic in Algeria, 27 million who speak it as their first language. It is also spoken by millions of people in Egypt, France, Tunisia, Netherlands, Spain, Sudan, Belgium, and Germany.
Algerian Arabic is rarely written, it is used mainly as a spoken language in homes and between friends and family. It contains words borrowed from Berber, Latin, French, Andalusian Arabic, Ottoman Turkish and Spanish. It is partially mutually intelligible with Tunisian and Moroccan Arabic.
The Algerian people are almost entirely Islamic with less than a thousand known Christians. Of the 39 people groups, almost all are classified as "frontier" with no knowledge of the claims of Christianity. Most of the English speakers are Indians who have immigrated to Algeria to teach English.
Sources: The Joshua Project
https://en.m.wikipedia.org/wiki/Algerian_Arabic
https://omniglot.com/writing/arabic_algerian.htm