November is National Senior Pet Month When is a pet considered a "senior" pet? Dr. Dawn's Pet Stop LLC Cats 7 years old Small Dogs 7 years old Large Dogs 5-6 years old drdawnspetstop.com 1202 12th Ave SE Jamestown, ND 701-952-PETS (7387) November is National Senior Pet Month When is a pet considered a " senior " pet ? Dr. Dawn's Pet Stop LLC Cats 7 years old Small Dogs 7 years old Large Dogs 5-6 years old drdawnspetstop.com 1202 12th Ave SE Jamestown , ND 701-952 - PETS ( 7387 )