1. Start with the geography you actually serve
Danville is recorded as a municipality in Vermilion County, Illinois. The 2020–2024 ACS five-year population estimate for Danville city is 28,595, with a margin of error of 309. That figure describes the city’s population; it does not establish legal demand, search volume, competition, lead volume or revenue. It also does not describe every household or individual your firm may serve. For attribution, the geographic fact changes the review question: decide whether your records distinguish Danville from other places in Vermilion County and from any broader service area your firm chooses to target.
Recommended approach
Bring your actual service-area definitions to the consultation. Review whether location is captured as part of an inquiry, whether it is useful for matter qualification, and whether reports can separate Danville from Vermilion County without treating population as a demand forecast.
