Use Upper Darby’s geography as a reporting boundary, not a demand forecast
Upper Darby township is recorded in Delaware County, Pennsylvania. The 2020–2024 American Community Survey 5-year population estimate is 85,486, with a margin of error of 55. That figure describes the municipal-town’s population; it does not establish legal demand, search volume, competition, language preference, call volume, or staffing requirements. For attribution, the useful question is narrower: can your firm distinguish an Upper Darby journey from activity in other locations you serve?
Recommended approach
Define the geographic views you actually need before reviewing performance. Keep Upper Darby, Delaware County, Pennsylvania, and any broader service areas distinct in reporting. Ask whether a landing page, referral, or campaign can be connected to the eventual inquiry without treating population as a proxy for case opportunity.
