Sorry… more questions…just so I have a much clearer understanding. Plus, to confirm, with a post editor open (creating or editing a post), you use a plugin called WP User Frontend to enter in the City and State for that post. Then, when viewing the post on the front-end, you show the city and state using a shortcode in the sidebar with a WordPress shortcodes plugin (where can I find this WP Shortcodes plugin?)?
Are you using the Classic or Block editor?
Do all existing posts have the city and state already added; just have to display them in a different location (or, reposition them as your request is)?