If you're playing on a Mac, you can find your save data in:
Are you looking for your save data on PC? You're in luck! I've got the most up-to-date information on where to find your precious farm files. save data stardew valley pc updated
Save Data Location for Stardew Valley on PC (Updated) If you're playing on a Mac, you can
C:\Users\<YourUsername>\AppData\Roaming\StardewValley\Saves If you're playing on a Mac
~/Library/Application Support/StardewValley/Saves