1. Start with Arnold’s service boundary, not a population assumption
Arnold is a municipality in Jefferson County, Missouri. The 2020–2024 American Community Survey 5-year estimate records 20,956 residents, with a margin of error of 52. Your firm may serve Arnold alone, Jefferson County more broadly, or additional Missouri communities.
Recommended approach
Bring your real service boundary and accepted matter categories to the review. Decide whether routing rules should distinguish Arnold from Jefferson County or other areas you serve, and document which geographic details are useful for intake without turning location into an unsupported qualification.
