Companion Animal Microchipping and Reunion Rates

Microchipping companion animals dramatically increases the probability of reunion after loss, preventing the suffering associated with homelessness, euthanasia, and prolonged separation.

Key Facts

Microchipped dogs are returned to owners at a rate 2.5 times higher than non-microchipped dogs
Microchipped cats are returned at a rate 20 times higher than non-chipped cats according to some studies
An estimated 10 million pets are lost or stolen in the United States each year
Microchip implantation is quick, inexpensive, and causes minimal transient discomfort
Registration in a searchable database is essential — the chip without registration provides limited benefit

Welfare Considerations

Microchipping sits at the intersection of individual animal welfare and responsible ownership. Lost companion animals face significant welfare risks: road traffic injury, starvation, predation, weather exposure, and in shelters without space, euthanasia. Microchipping and database registration are among the simplest and most cost-effective welfare interventions available to individual owners. Mandatory microchipping has been implemented in some jurisdictions with measurable increases in reunion rates and reductions in euthanasia. Low-cost microchipping events can extend this benefit to animals in economically disadvantaged households.

What You Can Do

Microchip all companion animals and ensure chip registration is current and accurate
Update microchip database records immediately if you move or change contact information
Support low-cost microchipping clinics in your community
Advocate for mandatory microchipping requirements in your jurisdiction
Scan for microchips in any found or rescued animals before assuming they are strays