Since it is generally difficult to find local data, you have to perform your keyword research on a wider range. And searching on broader terms will give you a national result and market indication. Afterwards, you can add more specific local terms and see where your search leads you.
After gathering enough combined general and local search results, you can do a reality check by copying and pasting the keywords you obtained and including the locale before and after the keywords to see which among these terms really stand out.
The keywords that rank high on your analysis should navigate interested people on your website once they find it. And what you must do next is to identify your competitors.
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