1. Start with the Londonderry service area, not an invented demand claim
Londonderry is recorded as a census-designated place in Rockingham County, New Hampshire. The 2020–2024 American Community Survey 5-year population estimate for Londonderry CDP is 12,225, with a margin of error of 674. That establishes the community and county relationship; it does not establish legal demand, case volume, competition or revenue. For software planning, the useful local question is narrower: which work must your firm handle for people in Londonderry and elsewhere in Rockingham County, and where does that work become repetitive or difficult to control?
Recommended approach
Map the workflow behind a specific service area or matter type. Do not size a software project from population alone. Identify the actual intake, follow-up, status, document or referral process that your team performs repeatedly, then decide whether its scope extends beyond Londonderry. A tool should reflect your operating reality rather than imply that local population data predicts demand.
