Want to add a map for your fellow St. Louisans to see, or just for yourself? 

We've made it easy. Follow the steps below and you'll be computing your own map in no time.


The process below is intended to be extremely neutral and unbiased. The data will be processed by Auto Redistricter (linked to below) and it creates maps based on various criteria detailed at the top of the Ward Maps page. It creates maps without bias toward any incumbents, and sometimes it takes a few tries to get one that also remains compact, contiguous, or that does somewhat well with neighborhood boundaries. 

Step 1

Download the folder from the link below that includes the necessary Shape Files. They were created by Brian Adler using QGIS, a free and open-source GIS platform. The files combine the most recent Census block data with the shape and details of St. Louis City.

Step 2

Download Auto Redistricter by visiting the page linked to just below. This is a free, open-source platform.

Navigate to the Zip file and download it. Once extracted, you can run Auto Redistricter.

Step 3

Import ALL the shape files at the same time as a Vector Layer in QGIS if you wish to edit them, or specifically the .shp file into Auto Redistricter. 

File -> Open EsriShapefile -> Navigate to the shape file downloaded in step 1 in your computer's directory.

Step 4

Prepare Auto Redistricter to run according to the criteria you set.

Set population to 200. Adjust geometric criteria and equality criteria.

Set Population Column to TotPop.

Set District Column to AR Result

Under Ethnicity Columns, choose White1, Asian1, Black1, HisPop, Indian1

Step 5

Click "Go".

This Process can take 3 or 4 hours. 

Process is complete when you no longer see color changes.

When complete, click "Map" in the header and show district labels.

Also click Outline VTDs and Color by District.

Step 6

Now it's time to make sense of the data.

Under File, click Save Data and choose to do so as a CSV file. This can be opened up by Microsoft Excel or Google Sheets. 

When in Excel or Sheets, find the AR RESULT column. 

Sort this column from lowest to highest. Now data is sorted by Ward.

Step 7

At the bottom of the Excel worksheet, you can now begin to categorize the data. View the spreadsheet attached below for Map #4 in Ward Maps for an example. 

If you are trying to sum a population, you can use quick formulas like =SUM(A2:A100) to sum every item between A2 and A100.

Step 8

Save your data, screenshot your map, and send it to us or simply keep it for yourself!

Now that you've made a map, try making a few more. Prioritize different criteria and consider different tradeoffs.

Thank you for taking part in this process. Please let us know if you have questions.