Meet ZACK
Zack is a gentle senior pup who first came to the shelter as a puppy and was adopted into a loving home where he spent many years. Sadly, his family is no longer able to care for him, and he has returned to us through no fault of his own. We’re grateful to have the opportunity to help Zack find his next chapter. This calm, affectionate guy enjoys gentle attention, exploring at his own pace, and simply spending time with his people. Zack is looking for a comfortable home where he can be cherished and enjoy his well-deserved retirement years.
Could ZACK be your senior soulmate?
Reach out to Contra Costa Animal Services and mention ZACK’s name — they’ll confirm availability and walk you through next steps.
Adoption details are handled directly by the shelter or rescue.
New senior dogs are added regularly — follow along for more dogs like ZACK and ways to help older dogs get seen.
Follow Lily’s Second Chance on Facebook (opens in a new tab)ZACK
- Senior status confirmed
- Last checked 8/21/2026
Shelter & rescue
Source: RescueGroups
Spot a problem with this listing — wrong details, or already adopted? Let us know in the comments and we’ll take a look.
Loading approved comments and the feedback form.
Know a senior dog who needs a home?
Shelters and rescues can list adoptable senior dogs for free.