1. Start with the geography you actually serve
The U.S. Census Bureau records St. Louis city as a municipality in Gratiot County, Michigan, with a 2020–2024 ACS five-year population estimate of 7,367 and a margin of error of 18. That is a description of the municipality, not evidence of search demand, case demand or likely lead volume. A St. Louis firm may also serve clients beyond the city, but the relevant geography must come from your own service policy rather than from the population record. Attribution is useful here because it can preserve the landing page, channel and referral path associated with each inquiry. That gives you a way to compare the journeys you actually receive from St. Louis city, Gratiot County or other permitted service areas without turning a census estimate into a marketing forecast.
Recommended approach
Define the geographic labels your intake team will use, then review whether each inquiry can be connected to a source journey and an outcome. Keep municipality, county, metropolitan area, household and individual distinctions separate in your reporting.
