Spay and Neuter Program

A date for the next free Spay/Neuter clinic has not yet been determined. If you live in the Sonoma Valley, and would like to be contacted regarding the next date, please complete and submit the Owner Information form below. There are some important restrictions regarding who is eligible to participate. 



  • You must be a resident of the Sonoma Valley, having one of these zip codes: 95416, 95433, 95442, 95452, or 95476. If you have a zip code other than one of these five options you do not qualify for participation.

  • Your annual household income must be $37,500 or less.

  • Your pet must weigh no more than 25 pounds. (We cannot treat larger animals at our free spay/neuter clinics.) 

  • Kittens must weigh at least 2 pounds.

  • Puppies must be at least 3 months old.


Free Spay/Neuter clinics are by appointment only. If you qualify based on the above requirements, and would like to make an appointment or ask questions, call Humane Educator Mary Green at 707.996.4577 ext. 109. You may also reserve a spot for your cat or dog by CLICKING HERE or entering your data in the Spay/Neuter Clinic Sign Up fields below.



Clinicas de esterilizacion son gratis y se requiere una cita. Regístrese AQUÍ o en el siguiente formulario.

No esterilizamos perros que pesan mas de 25 libras. 

Para informacion sobre la proxima clinica de esterilizacion llame al:

707.996.4577 x109 o mandenos un email:

Other Low Cost Spay/Neuter Clinics

Sonoma Humane Society

(707) 284-3499

CLICK HERE for information and pricing.

Napa Humane Society
(707) 252-7442

CLICK HERE for information and pricing.

Low Cost Wellness Clinics

Pet Food Express, Sonoma

(707) 935-0777

Thursdays 2:30pm to 4pm, no appointment necessary.

CLICK HERE for more information.

Napa Humane Society (Napa County residents only)
(707) 252-7442

Fridays 9:30am to 1pm, no appointment necessary.

CLICK HERE for information and pricing.



Mailing Address

PO Box 341
Sonoma, CA 95476

Temporary Location

21045 Broadway

Sonoma, CA 95476

Permanent Location

19686 Eight St. East

Sonoma, CA 95476


Shelter Hours

Shelter staff are onsite 7 days a week, 8:30am-5:00pm. However, due to COVID-19 health concerns, we are only open to the general public by private appointment. For more information, please phone or email us at:
707.996.4577 x106 or

We are a 501(c)3 nonprofit. Our Federal tax ID is #94-2851279

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