1. Define the geographic scope before you judge a source
The U.S. Census Bureau records San Mateo city as a municipality in San Mateo County, California. Its 2020–2024 ACS five-year population estimate is 103,105, with a margin of error of 92. That is context for the place you named, not evidence of legal demand, search volume, competition, call volume or revenue. A firm may serve San Mateo city, the rest of San Mateo County, or another defined area. Those choices should not be collapsed into one reporting label. Lead Attribution gives you a reason to decide whether geographic distinctions belong in landing-page, intake or outcome review. The useful question is not whether a population figure predicts inquiries. It is whether your records identify the service area and case context you need when evaluating a source.
Recommended approach
Before a consultation, write down the geographic labels your team uses for San Mateo city and San Mateo County. Ask how those labels would appear in lead review and whether a source can be evaluated alongside the firm’s actual service boundaries.
