Lifesaving Impact | PAWS Chicago

The Lifesaving Impact of Spay/Neuter

The single most effective way to end the killing of homeless pets

Control the birthrate of unwanted animals

PAWS Chicago was founded to build No Kill communities—starting with a No Kill Chicago. Controlling the birthrate of unwanted dogs and cats is the single most important component in accomplishing this mission.

An Exponential Issue

A puppy or kitten can have her first litter when she is six months old. The gestation period is just over two months long, and each litter has multiple puppies or kittens. 

Without spaying or neutering dogs and cats, it’s easy to see how so many end up in shelters—or worse.  


  • Reduces the number of unwanted pets born
  • Reduces the number of unwanted pets turned into shelters
  • Reduces the number of pets killed in traditional kill shelters and the city pound

Our Targeted Approach

In 2001, we began operating PAWS Chicago’s Lurie Clinic, the city’s first high-volume, free and low-cost clinic. Located in the heart of a vibrant but at-risk community in Little Village, the Lurie Clinic serves neighborhoods most in need.

And in 2011, we deployed the GusMobile Spay/Neuter Van to go directly into underserved neighborhoods throughout Chicago. 

In 2014, we launched the PAWS for Life Community Outreach program, an extension of the Lurie Clinic designed to go deeper through door-to-door outreach in communities where pet overpopulation remains problematic.

The Proof Is in the Numbers

PAWS Chicago was founded in 1997. That year, 42,561 animals in Chicago were euthanized. Since then, we have seen an incredible decrease in the number of pets killed. We attribute much of this decrease to the success of spay/neuter services and education, which lowered the number of animals entering the shelter system.

Visit our Results Page to learn more. 

What’s Next?

There are still thousands of homeless pets killed annually in Chicago and thousands more in surrounding communities. 

We’re working to be even more effective with our spay/neuter services. Every year, we conduct thorough analysis of:

  • The ZIP code origin of pets coming into Animal Care & Control (the city pound)
  • Neighborhoods where the city is receiving a significant volume of stray calls 

Through this analysis, we are able to determine which ZIP codes are most in need of spay/neuter. This enables us to evaluate our Targeted ZIP Codes eligible for subsidized surgeries and adjust each year.