Start with the service area you actually want to represent
Your firm may serve St. Marys, other parts of Auglaize County, or a broader Ohio area. Those are different geographic choices. A St. Marys city profile should not automatically be treated as evidence about every household in Auglaize County, and county coverage should not be presented as city-level demand. The population estimate for St. Marys is useful for defining the place under discussion, not for predicting how many people will search for a lawyer or leave a review.
Recommended approach
Decide which locations your firm is prepared to serve and which location should be associated with your Google Business Profile and review requests. Keep public language accurate: distinguish St. Marys city from Auglaize County and from any wider Ohio service area. Review whether each matter type and client relationship genuinely belongs in the reputation program.
