1. Treat Richton Park as a defined coverage decision
The Census record identifies Richton Park as a municipality in Cook County, Illinois. That gives Bosseo and your firm a precise geographic relationship to review: Richton Park is in the county, rather than an unbounded reference to the Chicago area or to Illinois generally. Bosseo’s public page says firms can choose a statewide footprint or limit coverage to counties they select. For your firm, the first question is therefore practical: do you serve clients in Richton Park and elsewhere in Cook County, and can you support that service area? The population estimate is not a forecast of searches or matters.
Recommended approach
Start with Cook County as a service-area question, not as proof of market opportunity. Confirm the municipalities and county boundaries your firm is prepared to serve, then ask Bosseo to show how those choices would affect the proposed coverage. Do not approve a location simply because it appears in a demographic record.
