Nairobi or Osaka: which is better?
World city: head-to-head comparison
Nairobi wins on more indicators: 2 of 2 against 0.
- Climate and risks: Nairobi 2:0
All indicators weigh the same. This is a score based on data, not advice on where to live: different people have different circumstances.
Nairobi
Indicator
Osaka
Population
no winnerCity population
neutral indicator: higher does not mean better
2,750,547 people
GeoNames snapshot (all-the-cities 3.1.0 package, 2022), exact date not stated
2,592,413 people
GeoNames snapshot (all-the-cities 3.1.0 package, 2022), exact date not stated
Urban centre population
neutral indicator: higher does not mean better
6,646,257 people
2025
12,653,994 people
2025
Urban centre area
neutral indicator: higher does not mean better
598 km²
2025
2,212 km²
2025
Urban centre density
neutral indicator: higher does not mean better
11,114 people per km²
2025
5,721 people per km²
2025
Urban centre population growth, 2015–2025
neutral indicator: higher does not mean better
41.2 %
2015–2025
-8.0 %
2015–2025
Climate and risks
Better: Nairobi (2 : 0)Rainy days
no data for one of the places
no data
94 days per year
2016-2025
Annual precipitation
no data for one of the places
no data
1,500 mm per year
2016-2025
Daylight on December 21
neutral indicator: higher does not mean better
12.2 hours
December 21 and June 21 (does not depend on the year)
9.8 hours
December 21 and June 21 (does not depend on the year)
Daylight on June 21
neutral indicator: higher does not mean better
12.1 hours
December 21 and June 21 (does not depend on the year)
14.5 hours
December 21 and June 21 (does not depend on the year)
Distance to the sea
neutral indicator: higher does not mean better
410 km
2006-2025
12 km
2006-2025
Earthquakes M4.5+ within 100 km
lower is better
✓0.05 per year
2006-202596% lower
✗1.15 per year
2006-20252200% higher
Strongest earthquake in the period
lower is better
✓4.6 magnitude
2006-202521% lower
✗5.8 magnitude
2006-202526% higher
A winner is named only for indicators with a known “better / worse” direction. Population and other neutral indicators are shown without a winner. Outdated and missing values are not counted. Details for each place: Nairobi, Osaka.