Start with the geography your firm actually serves
The 2020–2024 ACS five-year population estimate for the city is 56,447, with a margin of error of 45. The practical hosting question is narrower: can your site remain available and usable for people reaching it from Coeur d'Alene and the wider service area your firm chooses to define?
Recommended approach
Use the city and county relationship to define the site and intake coverage you want to support, not to predict performance. During a review, identify the pages, forms and other assets that matter to your Coeur d'Alene practice, then test those assets from representative devices and networks. Ask Bosseo which measurements will be recorded before and after any hosting change.
