635 W. Roger Road
We suspect what Tucsonans love so much about volunteering for the Humane Society is the huge variety of options: You can walk dogs, do dog and cat enrichment, be a foster parent, help with offsite adoptions, work at the thrift store, offer office support and more. But it could just be that you get to hang out with animals, and that you're helping make the world a better place for pets and their people.
Runners up:
2. Pima Animal Care Center
3. Casa de los Niños