Start with the geography your firm actually serves
Winthrop is recorded as a municipal town in Kennebec County, Maine. The 2020–2024 ACS five-year population estimate is 6,191, with a margin of error of 23. For attribution, the practical issue is different: your reporting should distinguish Winthrop from other places your firm serves rather than treating every Maine inquiry as one local market. During a review, identify how your intake records describe location and whether the pages, referrals or campaigns you evaluate correspond to the geographic areas your firm intentionally serves.
Recommended approach
Use Winthrop and Kennebec County as geographic questions for reporting and review, not as forecasts.
