Start with the San Juan service area, not a population forecast
The Census records San Juan city as a municipality in Hidalgo County and gives its 2020–2024 ACS five-year population estimate as 36,149, with a margin of error of 28. That is geographic and eligibility context only. It does not show how many people search for a lawyer, which practice areas they need, how many firms advertise or how many inquiries an ad could produce. For a San Juan campaign, the important operational question is whether your intended service area matches San Juan itself, Hidalgo County, or a narrower area your firm can actually serve.
Recommended approach
Bring your preferred service locations and any location limits to the review. Decide whether the campaign should address San Juan alone or a broader service area, then compare that choice with your intake capacity and case criteria rather than treating the city population as a demand estimate.
