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Intact female community cats produce an average of 1.4 litters per year with 3 kittens per litter
Source: HumanePro (Humane Society) (2025)
HumanePro (Humane Society). (2025). Pets by the Numbers. As cited in Cat Cognition. https://catcognition.com/statistics/feral-cats/#us-community-cat-litters
30-40 million
The estimated number of community cats (strays and ferals) in the US is 30-40 million
HumanePro (Humane Society) (2025)
99.4% reduction
A 16-year TNR program on the San Francisco Bay reduced the initial population of 175 cats by 99.4%, with only 1 cat remaining
PMC / Frontiers (2020)
29%
Approximately 29% of the American public feed outdoor cats they don't consider their own pets (range: 15-47% depending on study)
HumanePro (Humane Society) (2025)
82% mean reduction
TNR in a Chicago neighborhood decreased colony populations by a mean of 82% from peak, with 8 of 20 colonies completely eliminated
Alley Cat Allies Research (2023)
