Lagos

Assembled from 31 blocks · 3 evidence · 30 related

1. Story
2. Nigeria's largest city, on and around a lagoon system on the Bight of Benin, and the case that most sharply separates where urban growth is happening from where urban attention goes. Its population is genuinely unknown: Nigeria has not held a census since 2006, that count returned about 9 million for Lagos State and was publicly disputed by the state government, and current estimates for the urban agglomeration run from roughly 16 to over 20 million depending on boundary and source. The constraints on daily life are not architectural. Peer-reviewed work on Lagos groundwater puts the share of households with a piped connection into the dwelling in the low single digits, with most supply coming from private boreholes, vendors and standpipes; the state water utility's production capacity is generally described as meeting well under half of demand. Formal mass transit arrived only recently, with the Blue Line's first phase in 2023. Meanwhile the coastline is being remade at both ends of the income distribution at once — reclaimed luxury land at Eko Atlantic, demolition at Makoko.
3. Knowledge
4. Sub-Saharan African urban growth
5. Urban water supply and sanitation
6. Lagos
7. Connections
8. Urban water supply and sanitation
9. Sub-Saharan African urban growth
10. Makoko
11. Eko Atlantic
12. Lagos Blue Line
13. Nigeria conducts its most recent census
14. Reclamation begins at Eko Atlantic
15. Construction starts on the Lagos Blue Line
16. Nigeria's census is postponed again
17. The Lagos Blue Line carries its first passengers
18. Makoko is cleared again, and the legislature stops it
19. Urban dedensification
20. Municipal fiscal capacity
21. Lagos
22. NEWater
23. Urban land subsidence
24. The JMP reports flat urban water coverage
25. Twenty-first-century urbanisation
26. Lagos
27. Where the next billion city dwellers are projected to be
28. Evidence
29. Supports the statement that only a small minority of Lagos households have a piped connection into the dwelling and that private boreholes supply a large share of domestic water. V55 verification basis: retrieved as an abstract and secondary summaries; the article was not opened, and the piped-supply share is therefore stated as a range rather than a figure.
30. Supports the statement that Nigeria's most recent population and housing census was held in 2006, that a 2023 attempt was halted, and that as of 2026 no new date had been announced. V55 verification basis: retrieved from a fact-checking organisation and Nigerian national reporting; no National Population Commission publication was opened.
31. Establishes the 2025 settlement shares (45 per cent cities, 36 per cent towns, 19 per cent rural), the count of 33 megacities, the projection of about 982 million additional city dwellers by 2050 concentrated in seven countries, and the first full integration of the Degree of Urbanisation. V55 verification basis: the UN's own release page carried the headline population-share and megacity claims and attributed them to this report; WebFetch is blocked in this environment, so the Summary of Results volume itself was not opened and the finer figures rest on the release and its summaries.