Critter Shack, Inc., was founded in 2002 by several citizens who were interested in finding solutions for the large number of abandoned, adoptable animals in the area. The rescue is an all-volunteer organization and has no paid staff.


Funded by donations, fund-raisers, adoptions, and grants, the organization has been successful in rescuing thousands of adoptable animals.  In 2014, Critter Shack placed more than 1300 dogs and cats into new homes, more than any other rescue in the Concho Valley.  All of the pets offered for adoption are spayed/neutered/vaccinated, furthering the goal of reducing the numbers of homeless pets in need of rescue.


Many of the rescued animals come from area shelters throughout the Concho Valley and many had been scheduled for euthanasia.  Critter Shack advocates for the humane treatment of animals, works to prevent the abandonment of animals, facilitates a spay and neuter program, and provides education in animal care, behavior, and humane treatment, along with establishing an ongoing adoption program designed to find caring homes for rescued animals.


As part of these efforts, Critter Shack is a partner with PetSmart Charities, which provides an on-site area for adoptable cats and offers space at the PetSmart in San Angelo for dog adoptions twice a month; PetSmart Charities also makes a monetary donation for each animal adopted on-site. Critter Shack links with Petfinder.com, an online searchable database of adoptable animals.


Critter Shack volunteers recognize education and free or low cost spay/neuter, along with a robust adoption program are the solutions to pet overpopulation and abandonment.

Please have your pet spayed or neutered to help put an end to pet overpopulation and an end to the killing of healthy, adoptable cats and dogs in our community.
Contact our Spay/Neuter Clinic at
(325) 450-7117 to schedule an appointment.


TNR is humane and non-lethal approach to long term free-roaming cat population control. You will find many resources on how to implement a TNR program in your neighborhood. Also, we have resources for those who need cat deterrents.
TNRM/Register Your Colony


​In an effort to control the overpopulation and improve the overall health of free roaming community cats in San Angelo and surrounding areas, Critter Shack hosts several spay/neuter clinics yearly. CS is now a sponsoring organization. If you are practicing TNRM, please register your colony.



Adoption Events at PetSmart​

Critter Shack hosts adoptions events at PetSmart every other weekend with wonderful cats, kittens, dogs, and puppies. Each pet is spayed or neutered and vaccinated. Dogs have been tested for heartworms. All pets are microchipped.  Cats and kittens are available for adoption each day of the week through the PetSmart adoption center. Please click here for our Calendar of Events.