cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

Quick-add: + add another resource

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

Quick-add: + add another resource

Code Indentation


Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.


  <meta charset=utf-8 />
  <title>Cluster My Points - Esri Leaflet</title>
  <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />

  <!-- Load Leaflet CSS from CDN.  More info at: http://leafletjs.com/examples/quick-start.html-->
  <link rel="stylesheet" href="//cdn.jsdelivr.net/leaflet/0.7.3/leaflet.css" />

  <!-- Load the Leaflet from CDN. More info at: http://leafletjs.com/examples/quick-start.html-->
  <script src="//cdn.jsdelivr.net/leaflet/0.7.3/leaflet.js"></script>

 <!-- Load the Esri Leaflet plugin from CDN.  For more info: https://esri.github.io/esri-leaflet/examples/ -->
<script src="//cdn.jsdelivr.net/leaflet.esri/1.0.0/esri-leaflet.js"></script>


  <!-- Include Leaflet.markercluster via rawgit.com, do not use in production -->
<link rel="stylesheet" type="text/css" href="https://cdn.rawgit.com/Leaflet/Leaflet.markercluster/v0.4.0/dist/MarkerCluster.Default.css">
<link rel="stylesheet" type="text/css" href="https://cdn.rawgit.com/Leaflet/Leaflet.markercluster/v0.4.0/dist/MarkerCluster.css">
<script src="https://cdn.rawgit.com/Leaflet/Leaflet.markercluster/v0.4.0/dist/leaflet.markercluster.js"></script>

<!-- Load Clustered Feature Layer from CDN -->
<script src="https://cdn.jsdelivr.net/leaflet.esri.clustered-feature-layer/1.0.2/esri-leaflet-clustered-feature-layer.js"></script>
  <!--  The following is the div that is acting as a container to hold the map-->
  <div id="map"></div>


                 /*  CSS to style the whole html page*/
   body {
     margin: 0;
     padding: 0;
   /*  CSS to style the map*/
   #map {
     position: absolute;
     top: 0;
     bottom: 0;
     right: 0;
     left: 0;
              //Check out more Sample code and API reference at https://esri.github.io/esri-leaflet/examples/

//Adds the map control and sets the center point to Durham and zoom scale to 10. For more info on the Leaflet map control check out: http://leafletjs.com/reference.html#map-class
var map = L.map('map').setView([35.7886, -78.6572], 14); //35.9886° N, 78.9072° W

//Adds a basemap to the map.  To see all the available basemaps: https://esri.github.io/esri-leaflet/api-reference/layers/basemap-layer.html

//The following line of code adds a number of data points coming from a Esri rest endpoint.  The data is farmers markets in Wake County and from: https://data.ral.opendata.arcgis.com/datasets/953ff61e36bd468d8ae267437377fa9c_0.\ . The points are added as a feature layer which means you can see the points on the map and create a popup showing the information about the points.  To learn more about feature layers: https://esri.github.io/esri-leaflet/api-reference/layers/feature-layer.html

var censusPoints = L.esri.clusteredFeatureLayer({
  url: 'http://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/0'

//The following code turns on popups, which display information about each data point.  Simple html is used to connect to the fields in the data.  Check out all the fields for the Farmers Market dataset at: http://maps.wakegov.com/arcgis/rest/services/Health/FarmersMkts/MapServer For more info on popups: http://leafletjs.com/reference.html#popup-options

censusPoints.bindPopup(function(feature) {
  //To show the fields in your data, replace the field names in the {} to match your data
  return L.Util.template('<p>Tract: {TRACT}<br>Block: {BLOCK}<br>Population: {POP2000}<br></p>', feature.properties);
Loading ..................