The Land of Swamps (沼の国, Numa no Kuni) is a country located near the Land of Demons. It was here that the body of the demon Mōryō was kept.

Trivia

• Anko Mitarashi once protected Chichiyasu, the daimyō of a country with the same name. It is unknown if it is the same country.
• This country appears to be allied with the Land of Fire, as Might Guy was assigned a mission in this country.