1. Start with the Streator service area, not an imagined market
Streator is recorded as a municipality in Illinois, with relationships to LaSalle County and Livingston County. The 2020–2024 ACS five-year population estimate for Streator city is 12,330, with a margin of error of 524. That is geographic and population context; it does not establish legal demand, search activity, competition, lead volume or revenue. For a law firm evaluating custom software, the practical implication is narrower: define which people and matters the tool is meant to serve. A process may cover the Streator office, clients elsewhere in either listed county, or a broader Illinois practice. Those are different scopes and should not be blended in the build brief.
Recommended approach
Write the service boundary into the requirements discussion. Identify whether the tool is for internal staff, existing clients, prospective clients, referral partners, or more than one group. Then decide whether county relationships affect access, routing, matter views or reporting. Treat Streator’s population record as context for geographic definition, not as proof that a particular software investment will pay off.
