This add-on generates a map to display geocoded results. It can also filter results by showing only results within the map bounds.
FacetWP Map Facet Addon GPL
This add-on generates a Map facet type, which works just like any other facet type.
The Data Source should be a custom field containing a comma-separated latitude, and longitude.
Advanced Custom Fields has a Google Maps field type that provides geolocation. For the facet’s Data Source, choose the field underneath the “Advanced Custom Fields” header.
WP Job Manager plugin automatically stores geolocation data. Set the facet’s Data Source to geolocation_lat.