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Algeria Population 2025 & Religious Demographics: Trends & Insights
Algeria, officially the People’s Democratic Republic of Algeria, is a country in the Maghreb region of North Africa. It is the largest country by total area & the ninth-most populous country in Africa. Algeria’s population has been steadily growing, though at a slower pace in recent years due to declining birth rates and increased deaths, especially after 2020.
As of January 1, 2024, the country had 46.7 million residents, with 895,000 births and 192,000 deaths recorded in 2023. The natural growth rate continues to decline, reflecting demographic shifts observed since 2017. As of January 1, 2025, Algeria’s population is estimated to be 47.4 million.
Source: Office National des Statistiques
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| Algeria | 2025 Population |
| Total Population | 47,400,000 |
| Global Rank | 34 |
| Share of World Pop. | 0.56% |
| Land Area | 2,381,741 sq. km (919,595 sq. mi) |
| Area Rank | 10th |
| Pop. Density | 20 person/sq. km |
| Growth Rate | 1.54% |
| Fertility Rate* | 3.05 |
| Infant mortality rate** | 18.4 |
| Median Age | 28.5 years |
| Life Expectancy | 77.50 years |
| Urban Population | 72.9% |
Religion in Algeria
Islam is the main and majority religion in Algeria, followed by 99.1% of the population. It has the third-largest Muslim population in Africa just behind Nigeria and Egypt.
Sunni Islam of the Maliki school of jurisprudence has more than 90% followers, and the remainder includes other Islamic schools and branches (Ahmadis, Shias, and Ibadis).
Christianity is followed by less than 1% of the population and the main denominations are Roman Catholics, Seventh-day Adventists, the Protestant Church of Algeria, Lutherans, Anglicans, and Egyptian Copts
Rest include Baháʼí population of 3,300 and a Jewish community of fewer than 200 people.
Religion Percentage in Algeria
- Islam – 99.1%
- Christianity – 0.4%
- Unaffiliated – 0.4%
- Other religions total <0.1%
Source: 2020 Census
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Largest Cities in Algeria by Population
| # | City | Province | Population |
| 1 | Algiers | Algiers Province | 23,64,230 |
| 2 | Oran | Oran Province | 8,03,329 |
| 3 | Constantine | Constantine Province | 4,48,028 |
| 4 | Annaba | Annaba Province | 3,42,703 |
| 5 | Blida | Blida Province | 3,31,779 |
| 6 | Batna | Batna Province | 2,89,504 |
| 7 | Djelfa | Djelfa Province | 2,65,833 |
| 8 | Sétif | Sétif Province | 2,52,127 |
| 9 | Sidi Bel Abbès | Sidi Bel Abbès Province | 2,10,146 |
| 10 | Biskra | Biskra Province | 2,04,661 |
| 11 | Tébessa | Tébessa Province | 1,94,461 |
| 12 | El Oued | El Oued Province | 1,86,525 |
| 13 | Skikda | Skikda Province | 1,82,903 |
| 14 | Tiaret | Tiaret Province | 1,78,915 |
| 15 | Béjaïa | Béjaïa Province | 1,76,139 |
| 16 | Tlemcen | Tlemcen Province | 1,73,531 |
| 17 | Ouargla | Ouargla Province | 1,69,928 |
| 18 | Béchar | Béchar Province | 1,65,241 |
| 19 | Mostaganem | Mostaganem Province | 1,62,885 |
| 20 | Bordj Bou Arréridj | Bordj Bou Arréridj Province | 1,58,812 |