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Kenya Population 2025 & Religious Demographics: Trends & Insights
Kenya, officially the Republic of Kenya, is a country in Eastern Africa. With a population of more than 50 million, Kenya is the 27th most populous country. As per the UN World Population Prospects Report, the estimated population of Kenya in 2025 is 57,323,930 (57 million ) and According to The Kenya National Bureau of Statistics, the Population projection as of mid-2024 is 52,428,290 (5.2 million)
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| Kenya | 2024 Population |
| Total Population | 52,428,290 (5.2 million) |
| Global Rank | 26th |
| Share of World Pop. | 0.69% |
| Land Area | 569,140 sq. km (219,750 sq. mi) |
| Area Rank | 48 |
| Population Density | 95 people/sq. km |
| Growth Rate | 1.95% |
| Fertility Rate* in Kenya | 3.52 |
| Infant mortality rate** in Kenya | 30.6 |
| Median Age in Kenya | 20.1 years |
| Life Expectancy in Kenya | 67.47 years |
| Urban Population in Kenya | 27.8 % |
Religious Demographics of Kenya (2025 Updated)
Christianity is the majority religion in Kenya and its followed by 85.5% of the population. Among Christians, Protestants churches have the largest adherents followed by the Roman Catholics, African Churches, and other small Christian groups.
Islam at 10.9% is the second largest religion and other smaller religion is followed by 1.8% of the population. Other religion includes Hinduism, Buddhism, and Baháʼí Faith.
Religion percentage in Kenya
| Religion/ Affilations | Percentage |
| Christians | 85.5% |
| – Protestant | – 33.40% |
| – Evangelical churches | – 20.40% |
| – African instituted churches | – 7.00% |
| – Roman Catholic | – 20.60% |
| – Other Christian | – 4.10% |
| Other Religion | |
| Islam | 10.90% |
| Hinduism | 0.13% |
| Others | 1.87% |
| No religion/atheist | 1.60% |
Source: 2019 Kenyan Census
Projected Kenya’s Religious Composition (2010-2050)
Kenya’s religious landscape has remained predominantly Christian, with over 80% of the population identifying as such from 2010 to 2050. However, the proportion of Muslims is gradually increasing, from 10.5% in 2010 to an estimated 13.3% by 2050. The unaffiliated population has remained relatively stable, hovering around 2-2.5%. Folk religions and other minority faiths continue to make up a small percentage of the population. These trends reflect gradual demographic shifts while maintaining Kenya’s strong religious identity.
| Year | Christians | Muslims | Unaffiliated | Folk Religions | Others |
|---|---|---|---|---|---|
| 2010 | 84.5% | 10.5% | 2.3% | 1.5% | 1.1% |
| 2020 | 84.8% | 9.7% | 2.5% | 1.7% | 1.2% |
| 2030 | 84.5% | 10.5% | 2.3% | 1.5% | 1.1% |
| 2040 | 83.6% | 11.6% | 2.3% | 1.4% | 1.0% |
| 2050 | 82.8% | 12.5% | 2.4% | 1.3% | <1% |
Source: PEW research center
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Largest Cities in Kenya by Population
| # | City | Population |
| 1 | Nairobi | 4397073 |
| 2 | Mombasa | 1208333 |
| 3 | Nakuru | 570674 |
| 4 | Ruiru | 490120 |
| 5 | Eldoret | 475716 |
| 6 | Kisumu | 397957 |
| 7 | Kikuyu | 323881 |
| 8 | Thika | 251407 |
| 9 | Naivasha | 198444 |
| 10 | Karuri | 194342 |
| 11 | Ongata Rongai | 172569 |
| 12 | Garissa | 163399 |
| 13 | Kitale | 162174 |
| 14 | Juja | 156041 |
| 15 | Mlolongo | 136351 |
| 16 | Malindi | 119859 |
| 17 | Mandera | 114718 |
| 18 | Kisii | 112417 |
| 19 | Kakamega | 107227 |
| 20 | Ngong | 102323 |