Hi, this feature is not available in the GeoMap. However, it is available in our
GeoChart, by setting the formatted value of the cell which contains the region id.
For example:
function drawVisualization() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Country');
data.addColumn('number', 'Popularity');
data.addRow([{v: '501', f: 'New York'}, 100]);
var geochart = new google.visualization.GeoChart(
document.getElementById('visualization'));
geochart.draw(data, {width: 556, height: 347, region: 'US', resolution: 'metros'});
}
You can also change the formatted value for a cell in an existing table by using the DataTable.setFormattedValue method.