Incorporated City If your business office is located in an incorporated city limit of Contra Costa County and you will be doing business in the unincorporated area of the county, click HERE for online application.
Unincorporated Area If your business office is located in an unincorporated area of the Contra Costa County, you will first need to contact the Division of Community Development at (925) 674-7200 or visit them at 30 Muir Road, Martinez, CA 94553, for zoning and planning requirements before applying for a county business license.
Not Sure in What Jurisdiction Your Business is Located?
Click Where to go to get a business License to determine which jurisdiction to go to for your business' property address. If you are told to go to a city agency, then your business is located in that city.
Please NOTE: If your business is located in a city limit and you do business in an unincorporated area of the county , you will need to obtain both the city's business license as well as the county's.
Businesses Selling Alcohol or Tobacco
Businesses Selling Alcohol
If your business will be selling alcoholic beverages, you will need to contact the Division of Community Development using the same information listed above.
Businesses Selling Tobacco
If your business will be selling tobacco products, you will need to contact the Health Services Department at (925) 313-6214.