1. Define the geographic record before judging a lead source
Brandon city and Minnehaha County are not interchangeable labels. A report that says “Brandon” should identify whether the contact came from the city, another part of the county, elsewhere in South Dakota or outside your intended service area. The Census record identifies Brandon as a municipality in Minnehaha County and reports its population estimate; it does not show legal demand, search activity, competition or likely lead volume. Lead Attribution can show the landing page, referrer, channel and device associated with a contact, but your firm still needs a geographic rule for deciding whether that contact is relevant.
Recommended approach
Agree on the geographic fields your intake team will review: city, county, state and any broader service area your firm actually serves. Do not treat a Brandon address as proof that a particular marketing channel works, and do not treat a Minnehaha County inquiry as a Brandon lead without checking the address.
