Nigeria Has Africa's Biggest Economy — So Why Is Everyone Leaving? The Japa Data 2019–2026

"Japa" — Yoruba slang for "run away fast" — has become the defining cultural phenomenon of Nigeria's 2020s. The word describes a decision millions of Nigerians are making: to leave, not for better opportunities, but to escape deteriorating ones. Nigeria has a $400+ billion economy and 220 million people. It also has the third-largest diaspora in sub-Saharan Africa and a remittance inflow that, in some years, exceeds oil revenue. This analysis uses data to answer the question every Nigerian is asking: what is actually driving the Japa wave — and what does it cost?

Sources: UN International Migrant Stock Database 2023; World Bank Migration and Remittances Data 2024; NMA (Nigerian Medical Association) estimates; Punch Nigeria.

The Scale of the Japa Wave: How Many Nigerians Have Left?

Precise emigration data is difficult to pin down because Nigeria does not have a national emigration tracking system. The best available sources are the UN International Migrant Stock database, the Nigerian Immigration Service, and destination-country census and visa data. Here is what the evidence shows:

• Total diaspora size: Approximately 1.7 million Nigerians were living abroad as of 2023, up from roughly 800,000 in 2019 — more than doubling in four years. Some estimates using broader definitions put the number higher, up to 5 million including second-generation Nigerians.
• UK visas issued to Nigerians: Nigerians were the second-largest group receiving UK skilled worker visas in 2023, with approximately 30,000–35,000 new skilled worker visas and over 100,000 student visas issued to Nigerians in 2022 alone.
• Canada immigration: Nigeria was among Canada's top 5 source countries for new permanent residents in 2022–2024, with over 22,000 Nigerian permanent residents in 2022.
• US diversity visas: Nigerians consistently win among the highest numbers of US Diversity Visa lottery places of any African country annually.

Sources: UN International Migrant Stock 2023; UK Home Office Immigration Statistics 2023; Immigration, Refugees and Citizenship Canada (IRCC) 2022 Annual Report; Nairametrics diaspora analysis 2024.

Where Are Nigerians Going?

Sources: UN International Migrant Stock 2023; US Census Bureau American Community Survey; UK Office for National Statistics; Nairametrics. Figures are estimates from multiple sources and should be treated as indicative.

The Brain Drain: Which Professions Are Leaving?

The Japa wave is not uniform. It disproportionately affects Nigeria's most educated, most trained, and most economically productive citizens — the people who are hardest to replace and most expensive to train.

Medicine and Healthcare

The healthcare brain drain is the most documented and arguably the most dangerous. The Nigerian Medical Association (NMA) estimates that between 16,000 and 21,000 Nigerian-trained doctors are currently practising in the UK, US, and Canada combined. The UK's General Medical Council register shows Nigerians as the fourth-largest group of internationally trained doctors in the UK. Meanwhile, Nigeria has approximately 1 doctor per 2,500 patients — compared to the WHO recommendation of 1 per 1,000. For nurses, the situation is equally severe: the UK's Nursing and Midwifery Council registered over 15,000 Nigerian nurses in 2022–2023.

The replacement cost of training a single doctor in Nigeria is estimated at ₦20–40 million over the six-year medical program — costs largely borne by government subsidies at federal and state universities. Nigeria trains doctors expensively and then watches the UK and US recruit them at zero training cost.

Technology and Engineering

Nigeria's thriving tech ecosystem — Lagos alone has been described as sub-Saharan Africa's leading tech hub — is experiencing a talent exodus even as it grows. Platforms like LinkedIn show disproportionately high numbers of Nigerian tech professionals advertising relocation to the UK, Canada, Germany, and the Netherlands. Tech workers are particularly mobile because their skills are globally portable and their earnings in Nigeria, while high by local standards, remain a fraction of what the same skills command in London, Toronto, or Amsterdam.

An entry-level software engineer in Lagos might earn ₦400,000–₦700,000 per month (approximately $260–$460 at 2025 exchange rates). The same role in London starts at £35,000–£50,000 per year (approximately $44,000–$63,000). The wage gap — more than 100× in some comparisons — is the most powerful driver of migration that no policy can easily overcome.

Academia

Nigerian universities are losing lecturers, researchers, and professors at an accelerating rate. The Academic Staff Union of Universities (ASUU) noted in 2024 that over 30% of recently trained PhD holders left Nigeria within two years of completing their degrees. Federal universities have been running below full academic capacity due to staff shortages in key departments.

Sources: Punch Nigeria — NMA statement on doctor emigration; UK General Medical Council International Medical Graduates Register 2023; UK NMC Annual Registration Data 2023; BusinessDay Nigeria tech talent analysis 2024.

What Is Driving the Japa Wave? The Push Factor Data

Sources: NBS CPI data; CBN; NMA; ASUU statements; World Bank Nigeria Development Update 2026; NigeriaElectricity Hub 2025 Power Report.

The One Thing Japa Sends Home: Remittances

The economic story of the Japa wave is not only loss. It is also, simultaneously, a growing lifeline. Nigeria's diaspora sends money home at a scale that rivals — and in some quarters exceeds — oil revenue. In 2023, Nigeria received $20.9 billion in remittances, making it the fifth-largest remittance recipient globally and the largest in sub-Saharan Africa. Estimates for 2024 put the figure at $23–25 billion.

What do these remittances do? They fund household consumption — food, school fees, rent, medical bills. They support small businesses. They cushion the shock of Nigeria's recurring crises. For the estimated 3–4 million Nigerian households with a family member abroad, remittances are often the difference between poverty and survival.

But there is a critical limitation: remittances mostly fund consumption, not investment. Unlike foreign direct investment (FDI), which builds factories, creates jobs, and generates taxable economic activity, remittances pay school fees today without necessarily building the infrastructure for a better economy tomorrow. A nation cannot sustain itself on consumption transfers indefinitely.

"The Japa wave is a rational individual response to a failed social contract. Until the conditions that make leaving rational are changed, no policy will stop it." — Chatham House Nigeria Programme Analysis, March 2025

Is Japa Good or Bad for Nigeria? The Honest Scorecard

Sources: World Bank Nigeria Development Update April 2026; Chatham House March 2025; Nairametrics diaspora analysis 2024; Punch Nigeria NMA statements.

What Would Actually Slow the Japa Wave?

There is no policy that stops emigration in a free society. Nor should there be. What can change is the calculus of the decision. When the benefits of staying begin to approach the benefits of leaving, fewer people will leave. The data identifies three interventions that would have the most impact:

• Wage parity in critical sectors: Especially healthcare. Nigeria cannot compete with UK or Canadian wages generally — but it could implement competitive, dollar-linked salaries for doctors and nurses, funded by the fiscal space freed from subsidy removal. Some states have started this experiment; none have implemented it at scale.
• Power infrastructure: Consistent electricity is the single most frequently cited quality-of-life driver behind emigration among Nigerian professionals. The Tinubu administration's electricity sector reforms are ongoing but slow. Every hour of additional reliable grid power per day reduces the emigration impulse for a subset of the population.
• Security: Professional Nigerians in Abuja, Lagos, Port Harcourt, and Kano increasingly cite insecurity as a primary factor. The 2023 Afrobarometer survey found that 75% of Nigerians say they do not feel safe walking alone at night in their area.

None of these are easy or quick. All of them require sustained political will across multiple administrations. The Japa wave will continue until the conditions that drive it change — and the data on those conditions, as detailed throughout this analysis series, suggests they have not yet changed enough.

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