Justice Map: Visualize race and income data for your community, county, and country. Includes tools for data journalists, bloggers and community activists.
Address: Save Map facebook icon twitter icon Save as ImageLarge Image Advanced Mode Basic Mode       Automatic Demographics: Draw Mode On Help
Layers: American Indian | Asian | Black | Hispanic | Multi-Racial | Nonwhite | White | Plurality | Income | Income Rich | Income Poor | Income Change | Income Block | Density | Base MapReset Map               Legend
Resolution: County Tract Block Group Block Default
Distance (miles):      Intersection Type      Compare     Add a Distance     
Est. Income
     $0 - 28,000
     $28,000 - 35,000
     $35,000 - 40,000
     $40,000 - 45,000
     $45,000 - 51,000
     $51,000 - 56,000
     $56,000 - 64,000
     $64,000 - 75,000
     $75,000 - 93,000
     $93,000 - and more
Justice Map - open map tile layers for race and income powered by Census Data.
I want you to
use the layers on your own map!


Updates
Dec. 30, 2016. Try the Spatial Justice Test. It's a tool to identify environmental injustice (and more). You can test how race and income varies at different distances from a set of points. Use our power plant data or upload your own!

Dec. 20, 2016. We added a visualization that estimates Income at the Block Level. It can be used as an index that combines race and income to give a micro-level view of environmental injustice (or other forms of spatial injustice).

Dec. 13, 2016. We updated the income data from the 2010-2014 American Community Survey to the 2011-2015 data. This applies to tile layers, clicking on the map, and the API. Puerto Rico is still using the old data (2007-2011).


How can I use Justice Map?
1) To visualize race and income data for their neighborhood, county, state, or the entire US.
2) To help journalists, bloggers, activists, and others create maps for their online or print publications.
3) To help map designers add race and income layers to their maps.
4) To do basic GIS data analysis. Advanced mode lets you compare who lives within 1 vs 5 miles of a location.

What data layers do you have?
We have several race layers and income layers (three different representations of median household income). The race layers are available at the county, census tract, block group, and block level. The income layers are available at the county and census tract level. This provides greater detail when you zoom in.

What are open map tile layers?
We have 100 GB of map tiles that we are sharing. Similar to open software anyone can use them on their website. This saves map makers the time required to deal with large datasets and tile production.

What is the data source?
Our information comes from the Census Bureau - the 2010 Census and the 2011-2015 American Community Survey (or 2007-2011 for Puerto Rico).

How did you create the map?
We imported the census data into a postgis database and generated the tiles with TileMill.

Who is behind this project?
The website was developed by Aaron Kreider - as a project for Energy Justice Network and Sunlight Foundation.

Race Layers
We have several race data layers that come from the US 2010 census. The Census Bureau uses two main variables - 'race' and 'hispanic'.


Income Layers
We use Median Household Income from the American Community Survey 2011-2015 five year summary (or 2007-2011 in Puerto Rico). These income values are estimated and we show the 90% confidence interval when you click on the map. Income data is only available at the county and census tract levels.


Density Layers
We use the Census 2010 data to calculate population density per square mile. This is available at the county, tract, and block level.


Geographical Resolution
We use four geographical units that come from the Census Bureau.


Website Features

Address
Type in a US address, hit 'Submit' and the map will go there.

Save Map
Lets you save the URL of the current map to make it easier to share.

Save as Image
Converts the current map into an image which is written out to the screen so that you can right-click to save it. According to user reports, this option does not work in Safari. There is also a large image option which requires an additional step. The large image option can be slow and may crash the browser. The large image save work bests in Firefox (and is likely to crash Internet Explorer, Chrome and Opera). If you need larger images for a special project, we can generate images (up to 10000 x 5000) that do not have the underlying satellite or road map layers if you email us.

Automatic Demographics
Automatically updates the demographics sidebar as you move the mouse around the map.

Draw Mode
Enables the Google Drawing tool which lets you add a marker and draw a line, rectangle, circle, or polygon. You can choose the color of the shape. You can save the drawing with Save Map or Save as Image. You could use a marker to highlight a location and use the circle tool to show who lives near it.

Distance
If you want to find the demographics for X miles from a point you can use this feature. First choose a distance. Then click on the map. The map will highlight the area you have selected by outlining the polygons. It will also show the demographics data in the sidebar.

Compare
This feature lets you compare the demographics of several areas. This is useful if you want to compare if people of a certain income or race are more likely to be near a location (ex. the site of a proposed waste facility or park). When you have checked the 'compare' box and then click on the map it fetches the data for both the area that you clicked on and several additional areas that are within a radius of the point clicked. The radiuses are chosen based on the resolution of the map. You can add your own radius (in miles) by using the 'Add a Distance' input box. You can also choose the intersection type -- how the polygons need to intersect with your point and radius (eg. a circle) to be included in the compared area.

Intersection Types
The results are returned as a table. The '0' distance includes the data for the area you clicked on, without any additional radius.


More Information
API - Include the map or data layers on your website
Categorization Methods
Data and Downloads
Email Me
Links
Terms of Use
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