Turgutlu, also known as Kasamba, is a municipality and district located in the Manisa Province of Turkey. Situated in the region historically referred to as Magnesia on the Maeander, the area covers a total landmass of 549 km2.
The district sits at an elevation of 68 meters (223 ft) above sea level. As of 2022, Turgutlu has a recorded population of 175,401 residents.