Can you find the 20 countries whose Capital City lies furthest South compared to its Geographical Center? "Relatively" in the sense that the area of the country is taken in consideration.
Data from Portland State University (https://www.pdx.edu/econ/country-geography-data), for missing countries from CIA (https://www.cia.gov/library/publications/the-world-factbook/fields/2011.html)
Island Countries are excluded!
D = distance travelling South from Country Centroid to Capital City, R = radius of circle with same size as country
An alternative measure for the 'southernness' of a capital could be 'the percentage of the country's land area that lies north of the capital'. This would probably produce slightly different results.
How do you work South Africa? If you take Cape Town, where parliament buildings are, as a capital, would that get SA onto the list? Also, what would the numbers look like if island countries are included? (I was puzzled to see London missing till I remembered that instruction)
For South Africa I use Pretoria, I'm pretty sure Cape Town would make it but I haven't checked. The data I have doesn't seem very reliable on small island countries (because the CIA data seems to be approximated to nearest integer and things like that!), anyway these are the Southernmost Capitals according to my data if you include island countries: Marshall Islands 27.83
Tuvalu 20.15
Tonga 8.18
Cape Verde 3.30
Vanuatu 3.08
Norway 2.62
Togo 1.99
Mozambique 1.90
Benin 1.82
Solomon Islands 1.65
Finland 1.45
Republic of the Congo 1.14
Sweden 1.00
Somalia 0.98
Canada 0.98
Monaco 0.97
Ghana 0.96
United Kingdom 0.95
Uruguay 0.94
Samoa 0.92
Saint Vincent and the Grenadines 0.91
Mali 0.82
Dominica 0.82
Papua New Guinea 0.81
South Sudan 0.78