Start with the geography your firm actually serves
Upper Dublin is a municipal-township in Montgomery County, Pennsylvania. A firm may serve people in the township, elsewhere in Montgomery County, or across a wider Pennsylvania market. Those are different reporting scopes. A useful attribution review should therefore distinguish the geographic area represented by a landing page or campaign from the client’s actual matter, address and service territory. The population estimate for Upper Dublin is eligibility context only; it cannot tell you how many residents need legal help or how many will contact your firm.
Recommended approach
Decide which geographic labels belong in your reporting before comparing channels. Review whether an inquiry concerns Upper Dublin, Montgomery County, another Pennsylvania community or a broader market, and avoid treating municipal population as a forecast.
