Start with the geography your firm actually serves
Reston is recorded as a census-designated place in Fairfax County, Virginia. The 2020–2024 ACS five-year population estimate for Reston CDP is 64,414, with a margin of error of 2,368. That is useful context for defining a reporting area, but it does not establish legal demand, search volume, competition, call volume, staffing needs, or language preferences. Your attribution plan should therefore distinguish a Reston inquiry from an inquiry elsewhere in Fairfax County or Virginia rather than treating every local contact as interchangeable.
Recommended approach
Decide whether Reston should be a reporting label, a service-area field, a landing-page category, or simply one part of a wider Fairfax County view. Ask Bosseo to show how those distinctions would appear in the lead journey and in any roll-up reporting.
