1. Start with the actual West Whittier-Los Nietos service area
The U.S. Census Bureau records West Whittier-Los Nietos as a CDP in Los Angeles County. Its 2020–2024 ACS 5-year population estimate is 25,615, with a margin of error of 1,493. That establishes the location and its population estimate; it does not establish how many residents search for legal help, which practice areas they need, how many firms compete for them or how many inquiries your firm receives. Lead Attribution should therefore not be configured around an assumed market size. It should help you observe the paths that actually produce inquiries from people your firm elects to serve in West Whittier-Los Nietos and elsewhere in Los Angeles County.
Recommended approach
Define the geographic rule you want to evaluate before reviewing performance. Decide whether the relevant record is a person who lives in West Whittier-Los Nietos, a matter connected to the area, a landing-page visit associated with the location, or another firm-defined criterion. Keep households, individuals and geography distinct, and do not treat the Census population estimate as a forecast.
