1. Start with the geography your firm actually serves
The 2020–2024 ACS five-year population estimate is 15,549, with a margin of error of 1,330. For attribution, the practical question is narrower: can your records distinguish Seaford inquiries from inquiries associated with other places your firm serves, while preserving the full path that produced each contact?
Recommended approach
Define the geographic labels and service areas your team will use before judging performance. Review whether Seaford should be treated as its own location in reporting, how Nassau County matters will be grouped, and how referrals or broader New York inquiries will be separated.
