Teenage pregnancy remains one of Kenya’s most pressing public health challenges, but national figures alone cannot fully convey its true scale. Progress has been made, yet it is unevenly spread. Behind the averages lie stark county-level inequalities, unreliable data in vulnerable areas, and structural failures that no single intervention has resolved. 

Consider this: In 2014, 18 per cent of adolescent girls aged 15 to 19 had ever been pregnant. By 2022, this figure had fallen to 15.7 per cent, while the total number of pregnancies among this age group dropped from nearly 396,000 in 2019 to 240,000 in 2024. 

Where the crisis is deepest: Arid and semi-arid areas in Rift Valley, Eastern regions 

Of the 6,026 adolescent girls aged 15 to 19 surveyed across all 47 counties in the Kenya Demographic and Health Survey (KDHS) 2022, 15.7 per cent have ever been pregnant. The data reveals a concentration of risk in arid and semi-arid areas of the Rift Valley and Eastern regions, where poverty, geographical remoteness, limited healthcare infrastructure, and cultural practices, including FGM and early marriage dramatically elevate girls’ risk. 

Samburu sits in a class of its own, with 50.1 per cent of teenage girls ever pregnant, roughly one in every two. It has a current pregnancy rate of 8.7 per cent and a live-birth rate of 41.5 per cent. West Pokot follows at 36.3 per cent ever-pregnant and 6.1 per cent currently pregnant, while Marsabit records 29.4 per cent ever-pregnant and 9.0 per cent currently pregnant, the highest current pregnancy rate in the country. 

Narok (28.1 per cent) and Meru (23.6 per cent) carry more statistical weight, with larger samples of 176 and 206 girls, respectively. This cluster broadly follows the contours of pastoral communities with weaker school retention for girls. 

In the Nyanza region, Homa Bay (23.2 per cent), Migori (22.4 per cent), and Siaya (20.9 per cent) form a troubling western bloc, counties where widespread poverty intersects with some of Kenya’s highest HIV prevalence rates, creating what health authorities call the “triple threat”: new HIV infections, teenage pregnancies, and sexual and gender-based violence converging on the same populations. 

The Ministry of Health (MoH) revealed that between January and February 2022 alone, 45,724 pregnant adolescents aged between 10 and 19 were recorded at health facilities, alongside 2,196 cases of sexual and gender-based violence among adolescents aged 12 to 17. 

Where rates are lowest: High school retention for girls, better access to healthcare and contraception 

Four Central Kenya counties, Nyeri (4.5 per cent), Nyandarua (5.2 per cent), Kirinyaga (7.3 per cent), and Murang’a (7.4 per cent), consistently record the lowest rates in the country, representing an 11-fold difference compared to Samburu. Nairobi City (8.4 per cent) and Mombasa (9.4 per cent) also sit well below average. This cluster likely reflects higher school retention for girls, stronger economic foundations, better access to healthcare and contraception, and cultural norms less permissive of early marriage. 

The urban-rural divide is also clear. Teenagers in rural areas had a pregnancy prevalence of 16 per cent compared to 12.3 per cent among those in urban areas, according to the KDHS 2022. 

Meanwhile, Vihiga county, with only 7.7 per cent ever pregnant and well below the national average, might appear a success story. Yet it records a 4.6 per cent current pregnancy rate, one of the highest in the country, against a live-birth rate of just 3.9 per cent, a gap that warrants closer scrutiny. 

The Small-sample problem: Most alarming counties also have least reliable data  

Five counties, Marsabit (n=20), Samburu (n=28), Tana River (n=27), Isiolo (n=27), and Lamu (n=24), have fewer than 30 girls surveyed. These are precisely the counties appearing most alarming, and also the ones where data is least reliable. A single additional case in Marsabit would shift the figure meaningfully. The most vulnerable and least-resourced counties are also the least well-measured, and decisions about resource allocation may rest on a fragile statistical foundation. 

Fifteen counties report zero per cent pregnancy loss among teenagers, including Nyeri, Kirinyaga, Kericho, Nandi, Kitui, and Narok. In statistical terms, zero pregnancy loss in any population of fertile women is implausible. This almost certainly reflects stigma around miscarriage, covert unsafe abortion, and the difficulty the KDHS methodology has in capturing these experiences, particularly in conservative communities. 

The health consequences: Babies born with low birth weight, preterm delivery, severe neonatal conditions 

Adolescent mothers aged 10 to 19 face higher risks of eclampsia, puerperal endometritis, and systemic infections than women aged 20 to 24, and babies born to mothers under 20 face higher risks of low birth weight, preterm delivery, and severe neonatal conditions. The WHO further identifies pregnancy and childbirth as the second leading cause of death among girls aged 15 to 19 worldwide, with approximately three million girls in this age group undergoing unsafe abortions every year. 

Kenya’s own maternal mortality ratio stands at 355 deaths per 100,000 live births, translating to roughly 6,000 preventable deaths annually, or about 16 women dying every single day. 

Kenya’s adolescent birth rate of 96 live births per 1,000 women is more than double the global adolescent birth rate of 44.1 per 1,000, a gap that reflects structural failures rather than individual choices. 

What drives it: Illiteracy, poverty, early sexual debut, child marriages, FGM, GBV 

Teenage pregnancy is driven by low educational attainment, limited knowledge of sexual and reproductive health, poverty, early sexual debut, child marriage, FGM, gender-based violence, and inadequate access to youth-friendly services. About four in ten women aged 15 to 19 with no education have ever been pregnant, compared to only five per cent of those with more than secondary education, underscoring education as the single most protective factor for adolescent girls. 

The Kenya Human Rights Commission (KHRC) has noted that 696 adolescent girls were impregnated every day in 2023, and in early 2024, formally petitioned Parliament to summon 20 county governors to explain what practical interventions they had in place. Behind every statistic, as the World Health Organisation (WHO) Partnership for Maternal, Newborn and Child Health has noted, are stories of young women forced to leave school, face stigma, or endure motherhood without support, a cycle that perpetuates poverty and poor health. 

Health information for unmarried women, adolescents imposes unnecessary limits  

Modern contraceptive use among married women has risen from 32 per cent in 2003 to 57 per cent in 2022, but this progress has not reached the most marginalised adolescent girls in the highest-burden counties. 

In September 2024, KELIN and its partners appeared before the High Court to challenge the constitutionality of the National Reproductive Health Policy 2022 to 2032, arguing it restricts access to essential reproductive health information for unmarried women and adolescents and imposes unnecessary age limits for accessing services. 

The Ministry’s RMNCAH-N Investment Case 2025 to 2030 projects that sustained investment could save an estimated 27,995 child lives, 4,611 maternal lives, and prevent 11,071 stillbirths over five years, with a return of KSh12.50 for every shilling invested. 

Sources: WHO, UNFPA Kenya, KELIN, KHRC, KHIS, NSDCC, NCPD, KNBS, KDHS 2022, Economic Survey 2025, MoH.  

Data analytics & visualisation: Stanley Njihia  

 Text: YvonneKawira