Public transit in the Netherlands is great, and the connectivity of Schiphol airport should be a model for every country.
This map shows all Dutch municipalities color-coded by journey time to the Schiphol airport, using public transportation only.
You can change the color-coding to number of stopovers, and get more information on any municipality by moving the cursor over it.
Data have been scraped from the public transit website 9292.nl . Times are quoted for a Monday afternoon at 6pm.
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The next two plots show that 40% of the 17 million people living in the Netherlands have a direct connection to the airport from their city, and 92% (!!!) of them live within one stopover to the airport. Moreover, the average Dutch person lives 1h and 20′ away from the airport!