Start with Chester and Delaware County coverage
The firm should distinguish Chester city from Delaware County and from any wider service area it may choose to advertise. The Census record identifies Chester as a municipality in Delaware County; it does not establish how far clients travel, which surrounding locations the firm serves, or where inquiries will originate. Bosseo’s public LSA page describes category and geography targeting, including deliberate service areas. That makes geographic definition a business decision rather than a population-based guess.
Recommended approach
List the locations the firm is actually prepared to serve, then compare that list with the firm’s licensed practice, consultation capacity and preferred case types. Review Chester separately from the rest of Delaware County so the firm can decide whether one service area is appropriate or whether coverage should be limited. Do not enlarge targeting merely because a larger geography contains more households or individuals.
