1. Start with Holliston as a defined market, not a performance assumption
The Census records Holliston in Middlesex County, Massachusetts, and reports a 2020–2024 ACS 5-year population estimate of 15,094.
Recommended approach
Decide which geographic relationship matters to your firm before reviewing results: Holliston, Middlesex County, Massachusetts, or a broader service area. Then ask whether your records can distinguish those relationships without turning an address, landing page or referral into an unsupported conclusion about intent.
