Spawn chunks are chunks found at the world spawn point which are always loaded in memory, unlike normal chunks which unload when no players are nearby.

How many chunks are loaded at spawn?

Finding spawn chunks The spawn chunks usually consist of an area of 16×16 chunks centered as close as possible to the world spawn point. Entities are only active if all chunks in an area of 5×5 chunks around them are loaded, limiting their activities to an effective area of 12×12 chunks around the world spawn point.

What chunks are always loaded in Minecraft?

Spawn chunks, a 16×16 set of chunks around the world spawn, are always loaded, so you can use that to your advantage when making automatic farms.