Saranap Address Change

Project Overview

In 2019 County Supervisor Candace Andersen and the Department of Conservation and Development were asked by a group of residents living in your neighborhood to investigate the possibility of changing the place name of some addresses from Walnut Creek to Lafayette. This unincorporated portion of the County is currently considered Walnut Creek with a zip code of 94595. However this group of 465 parcels is within the Lafayette School District and the City of Lafayette Sphere of Influence. The proposal would change the mailing address to Lafayette with a zip code of 94549. While this would change the mailing address to Lafayette it will still be part of unincorporated Contra Costa County, not the city of Lafayette. The United States Postal Service denied this request for zip code change. 

Lafayette_Saranap_Potential_Place_Name_Change_Affected_Parcels - Copy

Project Update

After the denial, a community group worked with Congressman DeSaulnier’s office to file an appeal. The USPS granted the appeal and implemented the change in January of 2021. The USPS made this change using a process called the “Preferred Last Line” and not via a change of Zip Code change. This essentially means that mail can now be delivered to your area when the mailing address shows the city as Lafayette, so long as the 94595 Zip Code is used. Based on the feedback received at the community meeting held on October 5, 2021, the Board of Supervisors will consider at its meeting on November 9th whether to direct that the County Assessor change the city name on the property tax rolls for your unincorporated property from “Walnut Creek” to “Lafayette.”  

Any change on the property tax roll associating your property with Lafayette, rather than Walnut Creek, will be in name only. It will not move your property into the City of Lafayette and the Zip Code of your property will remain the same.  Mail will continue to be sorted at the Walnut Creek Post Office and continue to be recognized by the United States Postal Service (USPS) when addressed as either “Walnut Creek” or “Lafayette.”

  1. Community Meetings
  2. Staff Contact
  3. FAQs and Resources

Community Meetings

November 9, 2021 - Board of Supervisors

Notification Letter for Board of Supervisors November 9, 2021 Meeting (PDF)

Saranap Address Change Board Order (PDF)
Attachment A - Map of Affected Area (PDF)

How to Provide Comments at the Board of Supervisor's Meeting
You can watch the meeting on Comcast Cable 27, ATT/U-Verse Channel 99, and WAVE Channel 32, and live online at  
Meetings of the Board start at 9 a.m. and are closed-captioned in real time.
If you would like to address the Board during public comment on this item, there are two ways to do so:

  1. You may call in during the meeting to 888-251-2949 followed by the access code 1672589#. To indicate you wish to speak on an agenda item, push "#2" on your phone; 
  2. You can access the meeting via Zoom. To indicate you wish to speak on an agenda item in Zoom, please use the “raise your hand” icon.

Public comment generally will be limited to two minutes. A Spanish language interpreter is available to assist Spanish-speaking callers.

October 2021 Meeting

Virtual Zoom Meeting
October 5, 2021
7:00 PM - 8:00 PM

Read Community Meeting Invitation Letter (PDF)
Join Meeting via Zoom 

September 2019 Meeting

Parkmead School Multi-Purpose Room
September 24, 2019
6:30 PM -8:00 PM

1920 Magnolia Way
Walnut Creek, CA 94595
Link to Meeting Location