In this list, we have compiled the smart cities in the world that have shared out open data in an aggregated open data portal. For the scope of this list, we have included only the open data portals of cities in a country and not the country's national open data portal.

In general, we note that cities in the Western region have embarked on their open data initiatives earlier.  North America has the most number of major smart cities/states with open data portals (81+ cities), followed by Europe (65+ cities) and Asia (40+ cities).

In Europe, we note that more cities in Western Europe have rolled out open data portals compared to their counterparts in Central and Eastern Europe. In Asia, cities in North Asia have embarked on more city-level open data initiatives compared to cities in South Asia.

This list of  more than 200 smart city open data portals is compiled in conjunction with the Insights article "Smart Cities - The Rise of Aggregated Open Data Portals".