Geochart

gistfile1.js

function drawVisualization() {
  var data = google.visualization.arrayToDataTable([
    ['Country', 'Popularity'],
    ['Milwaukee', 200],
    ['Cook', 300],
    ['Dane', 700]
  ]);
  
  var options = {
        region: 'US-WI',
        displayMode: 'markers',
        colorAxis: {colors: ['green', 'blue']},
    resolution: 'metros',
    width: 500,
    height: 500
};
  

  var geochart = new google.visualization.GeoChart(
      document.getElementById('visualization'));
  geochart.draw(data, options);
}
​