The data location in which Jaxx stores your wallet information depends on the operating system you are using. As of Jaxx version 1.3 and higher keep in mind that when Jaxx is uninstalled, the wallet data is deleted as well so there will be no way to recover the wallet at that point.
Linux desktop: $HOME/.config/Jaxx/Local\ Storage/file__0.localstorage
Linux chrome extension: $HOME/.config/google-chrome/Default/Local Storage/chrome-extension_ancbofgphhmhcchnaognahmjfajaecmo_0.localstorage
macOS desktop: /Users/[username]/Library/Application Support/Jaxx/Local Storage/file__0.localstorage,
Windows desktop: C:\Users\<Your Computer's User Name>\AppData\Roaming\Jaxx\Local Storage
Windows chrome extension: C:\Users\<Your Computer's User Name>\Local\Google\Chrome\User Data\Default\Local Storage\chrome-extension_ancbofgphhmhcchnaognahmjfajaecmo_0.localstorage