Miniature Schnauzer Lifespan Miniature Schnauzers live for 10-12 years, and now the average Schnauzer lifespan has reached 10 years. Some of the longest-lived schnauzers can survive 17-18’s or even 20 years. One of the reasons for the longevity of dogs is that it is now common to give the schnauzer preventive vaccinations, and schnauzers suffering from filariasis and distemper have largely disappeared. The second reason is that the control of intestinal parasitic diseases in the schnauzer has been thorough, and attention has been paid to the nutritional balance of the schnauzer.
