How big is a city? Ask three people and you may get three different answers, all of them correct. Cities of the World answers the question three ways for every place on Earth that reports 100,000 people or more: 6,902 cities in 176 countries and territories.
Each city is measured by its administrative boundary, by the continuous built-up agglomeration seen from space, and by a fixed 10 km circle that allows a truly like-for-like comparison. The result is a reference book of rankings and tables that puts Dhaka, Cairo, Shanghai, Paris, La Paz and Yakutsk on the same scale.
Inside you will find:
- The 40 largest urban agglomerations on Earth, and why "one city" is often dozens of municipalities grown together
- The densest city cores, where more than ten million people live within 10 km of the centre
- Twenty-five years of change, 2000 to 2025: the fastest-growing cores and the ones that lost people
- The highest and lowest cities, from the Tibetan Plateau and the Andes to the shores of the Caspian Sea
- Hottest, coldest, wettest and driest cities from real weather-station records for 1991–2020, with no modelled filling
- Distance to airports and seaports, mapped streets, footpaths and railways, and how green each city is
- National capitals compared, twelve detailed country profiles, and a summary table for all 176 countries and territories
More than 60 ranked tables and text charts are computed directly from open data: the Overture Maps Foundation and OpenStreetMap, the European Commission's Global Human Settlement Layer, NOAA's Global Historical Climatology Network, OurAirports and Natural Earth. Every figure can be traced to its source, and the book explains plainly where the data are strong and where they are weak.
For readers who love maps, atlases, geography trivia, travel planning or urban studies, and for teachers and students who need a consistent, sourced picture of the world's cities.
Made with AI assistance (procedural data + AI-written text): every table was computed by code from the open datasets listed in the book, and the explanatory text was drafted with an AI model and checked against those tables.
Custom data books, tables or charts on commission: hello@lilambd.com