Minecraft swampland village seed 1.15.1 on massive island
The seed is: 1800428551636595714
The coordinates of the village are (X300 by Z-350) which is really close to the starting point of this Minecraft seed. The whole place is one gigantic island surrounded by ocean. This is one of the largest Minecraft island seeds we've ever seen. There are only temperate biomes on this island and a lot of birch forests.
The village is halfway in the swamp, which makes this as close to a swamp village as anyone is ever going to find. If anyone was looking for a village in a swamp then you found one of the best Minecraft seeds.