1. Start with Detroit’s actual service area
Detroit is recorded as a municipality in Wayne County, Michigan. The 2020–2024 ACS five-year population estimate for Detroit city is 638,530, with a margin of error of 62. That is geographic and population context, not proof of legal demand, search volume, competition, lead volume or revenue. It also does not establish that every inquiry comes from within the city. A Detroit firm should therefore decide which geography belongs in attribution reviews: Detroit city, Wayne County, a broader metropolitan area, or another defined service area. Those categories should not be blended. The useful local question is whether your records distinguish the areas you actually serve when you compare channels, practice areas and outcomes.
Recommended approach
Before evaluating performance, define the geographic labels your firm wants to review and keep Detroit city separate from Wayne County and any broader area. Ask whether an inquiry’s location is collected consistently, whether the firm serves it, and whether geographic reporting would change intake ownership or marketing decisions.
