Multiple restaurant locations one website

Hello,

Thank you for your patience.

If you want to rank in multiple cities, enabling the Multiple Locations option (Rank Math PRO) and creating dedicated pages for each location is recommended.

However, if you want to add areaServed property to the default Organization/LocalBusiness Schema of our plugin, you can use and customize the following filter:

add_filter( 'rank_math/json_ld', function( $data, $jsonld ) {
    if ( isset( $data['publisher'] ) ) {
        $data['publisher']['areaServed'] = [ 
			['@type' => 'city',
			 'name'  => 'Prescott',
			 'sameAs'=> 'https://en.wikipedia.org/wiki/Prescott,_Arizona'],
		    ['@type' => 'city',
			 'name'  => 'Prescott Valley',
			 'sameAs'=> 'https://en.wikipedia.org/wiki/Prescott_Valley,_Arizona']
										   ];
										   
    }
    return $data;
}, 99, 2 );

Here is how to add a filter to your site:
https://rankmath.com/kb/wordpress-hooks-actions-filters/

Moreover, in Rank Math PRO, you can easily add it using our Multiple Location feature:
https://rankmath.com/kb/multiple-locations/
https://rankmath.com/kb/add-multiple-areaserved-cities-to-localbusiness-schema/

Hope that helps.