Start with the geographic relationship, not a population assumption
O’Fallon’s recorded county relationship is St. Clair County. Attribution therefore matters at the level of the individual inquiry. It can help you distinguish a visit associated with an O’Fallon page from a referral, an organic search result, a Local Services Ad, an AI referral or another path described by Bosseo. The question is whether your records show which geographic and service pages assist real inquiries and matters.
Recommended approach
Define the geographic labels your firm actually uses before reviewing results. Keep O’Fallon, St. Clair County, Illinois and any broader service area distinct, then assess whether each lead’s landing page and intake information support the label you assign.
