Drive west from downtown and the valley unfolds in layers: Garden City along the river, then Meridian, Nampa and Caldwell further out, with Eagle and Middleton to the north and Kuna to the south. Google weighs how close a business sits to the person searching, so a roofer on the Bench and a roofer in Nampa may never compete for the same map spot. If your company serves the whole valley, your site has to say so in a way Google can read.
New neighborhoods, thin search history
Subdivisions keep appearing on former farmland in Ada and Canyon counties. Residents who just moved in have no referrals yet, so they search for nearly everything, from a dentist to a fence installer. That creates steady demand for businesses willing to publish pages that describe the areas they really cover rather than listing every town name in a footer.
Two very different buyers
Part of the Boise economy runs on trades, home builders and food processing suppliers, and part runs on software, engineering and professional services clustered downtown and near the airport. The first group needs the local pack and quick calls. The second needs pages that answer detailed questions and earn links from people in their field.