1. Start with the geographic question your records can answer
Millbury is recorded as a municipal town in Worcester County, Massachusetts. The 2020–2024 American Community Survey 5-year population estimate is 13,961, with a margin of error of 38. That is eligibility and market-context information, not proof of legal demand, search volume, competition, lead volume or revenue. It should not be used to infer how many people will contact a law firm or what language, staffing or intake arrangement the firm needs. For attribution, the practical question is narrower: can your records distinguish inquiries associated with Millbury from inquiries associated with other places your firm serves?
Recommended approach
Review whether location is captured consistently in intake records and whether it can be compared with source, landing page, case type and outcome. Decide which geographic distinctions matter to your firm before evaluating reports. A Millbury page, a Worcester County page and a Massachusetts-wide page should not be treated as interchangeable if your marketing decisions depend on the distinction.
