Smart Map - How to search by a field in address?
It's more &quot;filtering&quot; than &quot;searching&quot;, but take a look at this...

Filtering entries by subfield value

Set a filter parameter when creating your element criteria model...
{% set params = {
    filter: {
        city: 'Beverly Hills',
        state: 'CA'
    }
} %}

{% set meetings = craft.entries.address(params) %}