How Long Do Rats Live. There are several kinds of reasonable good lifespan surveys done over the years with a large group of rats. Rats can survive for up to four years if kept healthy as a household pet.
Part of the series. However some rodents live longer than others. The longest living rodent pet is the chinchilla.
Like we said before rats tend to live anywhere from 1 to 2 years in the wild.
But if the rat was domesticated this sometimes happens then it can live up to 4-5 years. How Long Do Rats Live. Rats in the wild face many more dangers than pet rats. How long do mice live is a question that can depend drastically on their living conditions much like rats.