1. Start with Herrin’s actual service boundary
The U.S. Census Bureau records Herrin as a municipality in Williamson County, Illinois, with a 2020–2024 ACS 5-year population estimate of 12,226 and a margin of error of 71. That is geographic and eligibility context, not proof of legal demand, search activity, competition, leads or revenue. It also does not establish that visitors share a language, device preference or intake behavior. Your firm should therefore define its service boundary directly: Herrin, Williamson County, Illinois, or another area your attorneys actually serve. The intake should not imply that every person in the city or county is an eligible client.
Recommended approach
Use Herrin and Williamson County as explicit scope questions or routing rules only if those places match your firm’s practice and service policy. Review whether a visitor’s location should affect eligibility, ownership or follow-up, and document exceptions instead of treating population as a forecast.
