1. Start with Harrisburg’s actual service area
The U.S. Census Bureau records Harrisburg as a municipality in Saline County, Illinois, with a 2020–2024 ACS 5-year population estimate of 8,372 and a margin of error of 314. That fact establishes the place and county relationship; it does not establish call volume, legal demand, competition, language preference, staffing requirements or likely revenue. Your service area may extend beyond Harrisburg, but that is a firm decision rather than something to infer from the city estimate.
Recommended approach
In a Bosseo consultation, write down the geographic scope your phone team is meant to serve: Harrisburg, Saline County, Illinois more broadly or another clearly defined area. Then decide whether the answering flow should ask for location, practice area and timing as part of intake.
