Start with Ottawa and LaSalle County coverage
The U.S. Census Bureau records Ottawa as a municipality in Illinois and places it in LaSalle County. Its 2020–2024 ACS five-year population estimate is 18,447, with a margin of error of 584. That figure describes the municipality; it does not establish legal-service demand, review volume, competition or likely revenue. For Reputation & Reviews, the useful local decision is narrower: determine whether the firm wants to build proof for Ottawa itself, for clients throughout LaSalle County, or for another explicitly defined service area. A review program should not imply that every reviewer, matter or prospective client comes from the city.
Recommended approach
Map the firm’s actual service geography before setting review-request rules. Separate Ottawa from LaSalle County in internal reporting, and identify any additional area only if the firm intentionally serves it. Use the map to decide which profile, practice-area language and inquiry categories deserve review—not to assume that population predicts results.
