1. Put Quincy and Adams County into the measurement boundary
Quincy is recorded as a municipality in Adams County, Illinois. The 2020–2024 ACS five-year population estimate for Quincy is 39,109, with a margin of error of 28. It does, however, give you a precise starting boundary for reviewing which inquiries are actually relevant to your practice. Your firm may serve people outside Quincy or elsewhere in Adams County, so attribution should distinguish the location a person searched, the location they reported, and the geography your firm accepts. Do not treat all three as the same field.
Recommended approach
Before reviewing channels, agree on the geographic definitions your team will use: Quincy, Adams County, Illinois, or another service area.
