1. Treat Derby as a defined place, not a demand forecast
Derby is a CDP in Adams County, Colorado. The Census population estimate is 8,453, with a margin of error of 1,150, for the 2020–2024 ACS five-year period. This is useful for geographic framing, but it cannot tell you how many people search for a lawyer, how many firms advertise, or how many inquiries a Local Service Ads profile will receive. A Derby-focused review should therefore distinguish the CDP from the county and from any broader service area your firm chooses to publish. A firm may serve Derby while accepting matters from elsewhere in Adams County, but that relationship must be an intentional practice decision rather than an assumption drawn from the population record.
Recommended approach
Document the locations you actually accept, the locations you do not accept, and any boundary that should trigger a transfer or decline. Review those choices against your practice areas and capacity before setting geographic coverage.
