hamishtaplin; unfortunately coverage is not fully global yet; I think we have about 372 cities in there at the moment. This draws from Numbeo.com's data set on rent indices. But if your city is not listed, our default solution is the following "If you live outside a metro region we base our offer upon the lowest rent index number of any metro region in your country (or state, in the case of the USA), if your country is listed"