Screenshot of the Widgets menu.In order to edit something in your sidebar, go to your dashboard and choose Appearance, then Widgets from the left-hand menu.

To the right of the widgets screen, you’ll see the list of all your active widgets in the sidebar block. The contact information is contained in the last text widget; click the downward pointing arrow on its right-hand corner and make your edits.

Click “save” and you’re good to go.

A screenshot of the "Contact Us" widget menu