1. Separate Hannibal geography from the service area you actually evaluate
The 2020–2024 ACS five-year estimate for Hannibal is 16,771 people, with a margin of error of 84; the recorded county relationships are Marion County and Ralls County. It should not become a proxy for any of those measures. Attribution is useful here because it lets you define the geographic question rather than assuming the answer. A Hannibal firm may want to distinguish a city-page visit from a county-related inquiry, a Missouri-wide matter, or a referral whose first online visit happened elsewhere.
Recommended approach
Before reviewing results, decide how geography should appear in your records. Keep Hannibal, Marion County, Ralls County, and broader Missouri service areas distinct when those distinctions affect eligibility, intake routing, advertising review, or matter reporting.
