Pricing & Counties / Contra Costa County
Contra Costa County FBN Publication
Contra Costa County FBN statements must be published after filing: four weekly notices in a newspaper of general circulation in the county, the first within 45 days, then an affidavit of publication filed with the county clerk. PublishProof is working on Contra Costa County ordering; meanwhile, the county's filing facts are below.
The Contra Costa County Rule, in Short
Businesses from Concord and Walnut Creek to Richmond, Antioch, and San Ramon file with the Clerk-Recorder on Escobar Street in Martinez, in person, by mail, or through the drop box out front. The online form saves typing but not the trip or the stamp: it still has to be printed, signed, and turned in with payment.
Cities and communities in Contra Costa County: Concord, Richmond, Antioch, Walnut Creek, San Ramon, Pittsburg, Brentwood, Danville, Martinez, Pleasant Hill, Oakley, San Pablo, Lafayette, El Cerrito, Orinda, and every other community in the county.
Three time limits under California Business and Professions Code §17917:
- First publication within 45 days after your statement is filed.
- Four weekly notices, once a week for four consecutive weeks.
- Affidavit of publication filed with the county clerk within 45 days after the fourth notice.
Orange County and San Diego County clerks state that a statement not published within 45 days expires and must be refiled. A renewal with no changes doesn't need publication as long as it's refiled by the expiration date or within 40 days after. Missed the 45 days? What to do next.
Your Contra Costa County Publication Deadline
Filing Your FBN in Contra Costa County
Statements are filed with the Contra Costa County Clerk-Recorder. The county charges $55 (the clerk's fee, which can change — check the county page before filing) for the first business name and registrant. Each additional owner or business name is $5. Card payments carry an extra service fee, and FBN filings are non-refundable.
- In person or drop box: 555 Escobar Street, Martinez, CA 94553
- By mail: 555 Escobar Street, Martinez, CA 94553, with a check or money order payable to "Clerk-Recorder"
- Online: you can complete the statement online, but it must be printed, signed, and submitted with payment
LLCs, corporations, and limited partnerships also submit a copy of their filed articles from the California Secretary of State.
Search existing Contra Costa County business names (official county site) to check a name before you file.
Source: official county website, checked October 2026. County fees and office hours change, so confirm before you go.
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Contra Costa County FBN Questions
What Does It Cost to File an FBN in Contra Costa County?
Contra Costa County charges $55 (the clerk's fee, which can change — check the county page before filing) for a statement with one owner and one business name, plus $5 for each additional owner or business name. Credit and debit cards carry an extra service fee, and the county says FBN filings are final and non-refundable. Publication is a separate newspaper cost.
Can I File a Contra Costa County FBN Online?
Partly. Contra Costa County lets you complete the statement online, but the printed form must be signed and submitted to the Clerk-Recorder in Martinez with a check or money order payable to "Clerk-Recorder", in person, by mail, or in the drop box in front of the building.
Does an LLC Need Extra Paperwork for a Contra Costa County FBN?
Yes. Contra Costa County asks limited partnerships, corporations, and LLCs to submit a copy of their filed articles from the California Secretary of State along with the FBN statement. Once the statement is filed, the 45-day publication window applies to every registrant type.
Contra Costa County Is Coming Soon
We're adding Contra Costa County publication soon. Until then, don't let your 45 days run out waiting: check your deadline below and publish with any adjudicated Contra Costa County newspaper.
Business actually located in another county? See all counties and prices.