The city has made public mapping tools available to assist the public in drawing maps.

1. Paper-Only Maps

These maps are for those those without internet access or who prefer paper.  Maps can also be picked up at Simi Valley City Hall or the Simi Valley Public Library.  Alternatively,  you can submit any form of hand-drawn map that identifies street names.

2. Online Mapping Tool:

Dave’s Redistricting App (DRA 2020)

Online Mapping Tool Instructions:

  • To use the online mapping tool, users will need to create an account on the Dave’s Redistricting App (DRA) site.  To create an account, you will need to enter your email and password, and click “Sign Up” on the left side of the DRA page. Once you are logged in, you will need to click on the Simi Valley’s Mapping Template link again. The map will take about 20 seconds to load.
  • The new map will load and a paintbrush icon will be on the top left section of the webpage.  The user will need to create an editable map by clicking on the paintbrush. Click “Yes” when asked if you would like to make an editable copy of the map. After a few seconds, your draft map will appear as “Copy of Simi Valley Redistricting Template” under “My Maps.”
  • To load the editable map, check the box to the left and then click “Edit” at the top of the webpage. It may take some time for your map to load. If the map does not load within one minute, please refresh your browser.
  • Once your map loads, click directly on the paintbrush icon. Then click on one of the four color circles (Blue, Green, Purple and Red) on the left hand side of the screen. Once you have selected your color, you can begin grouping sections of the map into districts by hovering your mouse over and clicking on the sections of the map. If you would like to change colors on the map, you can unselect sections by clicking on the circle without color. You can also chose another color circle.
  • As you are forming your districts, please remember that the Ideal District Population is 31,589 per district.
  • When you have completed your map, click the Export arrow at the top right section of the webpage. Select the Map Image option to export your map as a PNG image file. Click Export. This will save your map to your device.  From here you can print your map to submit in person or attach to an email.

If you have any questions about using the mapping tools, or require any other assistance or accommodation, please call the City of Simi Valley City Clerk’s Office at (805) 583-6748.

3. How to Submit Maps

You can submit your map electronically, by mail, or in person.​


Submit by Mail or Drop Off in Person:​

City Clerk’s Office
Attn: Redistricting
2929 Tapo Canyon Rd
Simi Valley, CA 93063

All submissions are part of the public record and will be posted in their entirety to the Draft Maps page.

It is helpful if you submit written comments with your map describing how your map was drawn to meet the required criteria. An example of this would be describing the specific neighborhoods or communities of interest that are kept within a single district.

If you would like to submit a map created using your own software, please email to and include: (1) a GIS Shapefile and/or a Census Block equivalency file (using 2020 Census Blocks); and, (2) a description of the choices and key points of your map.