The current mob despawning radii are as follows:
(All numbers are in blocks from the player)
- ambient:
- hard: 96
- soft: 28
- axolotls:
- hard: 96
- soft: 28
- creature:
- hard: 96
- soft: 28
- misc:
- hard: 96
- soft: 28
- monster:
- hard: 96
- soft: 28
- underground_water_creature:
- hard: 96
- soft: 28
- water_ambient:
- hard: 96
- soft: 28
- water_creature:
- hard: 96
- soft: 28