The lower limit above which a settlement can be considered urban varies greatly, between 200 and 50,000 inhabitants, which can give rise to error when comparing urban populations (and urban areas) in different countries. For example, if India's national authorities would classify populations of 5,000 or more as urban, the country would be considered predominantly urban and not rural. In Angola, Argentina and Ethiopia, all settlements with 2,000 people or more are classified as urban.