Start with Mandeville service boundaries, not population assumptions
The Census record identifies Mandeville as a municipality in St. Tammany Parish. It does not say how many people call law firms, which legal services they seek, or whether your firm needs additional coverage. If your firm serves Mandeville and other parts of St. Tammany Parish, define that service area in the firm profile used for answering and follow-up. Keep Mandeville households, individuals and the wider parish distinct when deciding what callers should hear.
Recommended approach
Write down the geographic questions the answering system may receive: whether the firm serves a particular place, where consultations occur, and whether an inquiry belongs with your team. Review the proposed firm profile for accuracy rather than using the population figure as a proxy for demand.
