Free Spay/Neuter & Rabies Vaccine Program


Free Services for Qualifying Zip Codes

Thanks to a special grant from the Maryland Department of Agriculture, the Baltimore Humane Society is able to offer free spay, neuter, and rabies vaccines to pet owners who live in the select zip codes of Baltimore County, Carroll County, and Harford County!

This is an income-based program by appointment only. Proof of income and residence are required.

This is for owners with pets living in the home, not feral communities.

Spay and Neuter Center Winter Weather Policy:  If Baltimore County schools are closed due to inclement weather, we will be closed that day as well, and we will contact you to reschedule. If schools have a two hour delay, we will still operate as normal. 

Appointments Required
Patients are seen by appointment only.

If you have an upcoming appointment, please our Winter Weather Policy below. 

*Due to high demand, appointments will fill up quickly and are first come, first served.

*At this time, all spay and neuter appointments for DOGS and FEMALE CATS are full. Appointments will be available again in a few weeks. Please check back.

For MALE cats (except TNR’s): Please fill out an application and schedule HERE.  Please have a copy of your pet’s vaccine records available in order to complete the application process.

For TNR appointments: Please call 410-833-8848 to schedule.


*We also offer low-cost spay/neuter & wellness services for those who do not qualify for the income-based free program. Find out more HERE.
*Download our spay/neuter program flyer HERE.
Need Help?

Please email [email protected]

Eligible Zip Codes*

*If you do not live in one of these zip codes you are still able to use our low cost services: Learn more 🙂

Baltimore County

  • 21136
  • 21117
  • 21133
  • 21244
  • 21207
  • 21208

Carroll County

  • 21157
  • 21158
  • 21787
  • 21048
  • 21102
  • 21074

Harford County

  • 21078
  • 21040
  • 21085
  • 21001

Qualifications and Requirements


Head of household must make $25,000 annually or less as an individual


Head of household must make $42,000 annually or less with dependents listed on tax forms


Proof required

Personal Identification matching benefit recipient AND one of the following:

  • W2, 1099, or completed tax statement showing one of the qualifying scenarios -OR-
  • Four consecutive pay stubs proving annual income for individual making less than $25,000-OR-
  • Current letter of benefit for government assistance