1. Set Johnston and Polk County boundaries before changing pages
The Census record identifies Johnston as a municipality in Polk County. That relationship matters because a page aimed at Johnston residents is not automatically a page for every person in Polk County, the broader Des Moines metropolitan area, or all of Iowa. Those geographic scopes describe different audiences and should not be blended simply because they are nearby. The Johnston population estimate is useful for identifying the place being discussed, but it cannot establish how many people need a lawyer, how many firms compete there, or how many searches occur.
Recommended approach
Begin with a service-area decision. List the locations your firm actually serves, distinguish Johnston from Polk County and any broader area, and decide which geographic statements are accurate for each practice area. Review whether an existing page clearly identifies the firm, the legal service, the location, and the limits of its service area. Keep any Johnston-specific explanation factual and useful rather than turning the population figure into a demand claim.
