Start with the geography your website actually serves
The 2020–2024 ACS 5-year population estimate is 42,488, with a margin of error of 65. For hosting, the useful implication is narrower: your website may need to support visitors from Jefferson City as well as people considering a firm that serves one or both named counties.
Recommended approach
Define the geographic scope of your site before the technical review. Identify which pages serve Jefferson City, Callaway County and Cole County, then ask whether the current host handles those pages, forms and assets consistently.
