About this map

This sample demonstrates how to create a colorful interactive choropleth map of census tracts using data from DC Open Data with the help of Esri ArcGIS JS API.

Instructions
Mouse over on census tracts for more information.

Built with...
Dojo, ArcGIS JS API

Download Census Tracts - 2010 data in GeoJSON
https://opendata.arcgis.com/datasets/6969dd63c5cb4d6aa32f15effb8311f3_8.geojson

View Census Tracts - 2010 data on DC Open Data
https://opendata.arcgis.com/datasets/6969dd63c5cb4d6aa32f15effb8311f3_8

DC Open Data
http://opendata.dc.gov

DC Open Data Samples
https://github.com/DCgov/opendatadc-starterkit