Mexico

Like the other Mexican municipalities map, but using projected TopoJSON for faster rendering and better simplification. In response to a Stack Overflow question.

<!DOCTYPE html>
<meta charset="utf-8">
<style>

.municipalities {
  fill: #222;
}

.municipalities :hover {
  fill: orange;
}

.state-boundary {
  fill: none;
  stroke: #fff;
  pointer-events: none;
}

.municipality-boundary {
  fill: none;
  stroke: #fff;
  stroke-opacity: .25;
  stroke-width: .5px;
  pointer-events: none;
}

</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>

var width = 960,
    height = 628;

var path = d3.geo.path()
    .projection(null);

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

d3.json("mx.json", function(error, mx) {
  if (error) throw error;

svg.append("g")
      .attr("class", "municipalities")
    .selectAll("path")
      .data(topojson.feature(mx, mx.objects.municipalities).features)
    .enter().append("path")
      .attr("d", path)
    .append("title")
      .text(function(d) { return d.properties.name; });

svg.append("path")
      .datum(topojson.mesh(mx, mx.objects.municipalities, function(a, b) { return a.properties.state !== b.properties.state; }))
      .attr("class", "state-boundary")
      .attr("d", path);

svg.append("path")
      .datum(topojson.mesh(mx, mx.objects.municipalities, function(a, b) { return a.properties.state === b.properties.state && a !== b; }))
      .attr("class", "municipality-boundary")
      .attr("d", path);
});

d3.select(self.frameElement).style("height", height + "px");

</script>

https://d3js.org/d3.v3.min.js

https://d3js.org/topojson.v1.min.js