Contra Costa Humane Society was formed as the result of the merger between two groups, Stop Pets' Annual Yield (SPAY) and Animal Protection Bureau (APB). SPAY was established in 1971 to support the Spay/Neuter Clinic locally and APB formed in 1980 to combat the homeless animal problem in Contra Costa County. A merger between the two groups was completed in 1991 and we have served Contra Costa County as CCHS ever since. 

The mission of Contra Costa Humane Society is to empower our community to improve the quality of life for animals and decrease euthanasia rates. Through our programs and services we connect with individuals and private and public organizations to adopt pets, reduce the number of unwanted animals, and educate the public to foster compassion, responsibility, and respect toward animals.