How old can ducks live to?

this depends largely on the breed and location.

(this answer is not for ducks in the wild)

if they arent fed properly and are exposed to clean living conditions they can die after several months of birth.

properly fed and clean living conditions can help ducks live to be 20 years old for a few breeds.

colder parts of the country will lower the bird's life span by a few years.

Usually semi-free range white pekins live around 6 or 7 years in moderate conditions.