Start with the Yankton service area, not a population assumption
Yankton is a municipality in Yankton County, South Dakota. For Automation, the practical local question is where inquiries from the firm’s defined service area enter the business and whether the same handling rules apply across that area. A firm may serve Yankton, other parts of Yankton County, or a broader South Dakota territory; those are different operating boundaries and should not be collapsed into one label.
Recommended approach
Bring the firm’s actual service-area definition to the consultation. Review whether geographic information should be captured, tagged or used for routing, and decide which locations require a human review rather than an automatic rule.
