1. Start with the geography your firm actually serves
Deerfield is a municipality in Illinois recorded in the 2020–2024 ACS 5-year data with an estimated population of 19,518 and a margin of error of 294. The village has recorded county relationships with Cook County and Lake County. Those facts describe the place; they do not establish legal demand, search volume, competition, lead volume, staffing requirements or revenue. For attribution, the important question is how your firm defines a Deerfield inquiry. You may serve the village, one or both counties, a wider metropolitan area or clients elsewhere in Illinois. Those geographic choices should not be collapsed into one label. Ask Bosseo to show how location, service type and source would be distinguished in the records you review.
Recommended approach
Bring your actual service-area policy to the consultation. Decide which geographic distinctions matter for intake and reporting, then ask whether the proposed attribution scope can preserve them without treating population as a forecast.
