Geographic data firm Esri has put together a county-by-county map of which parts of the country have the greatest need for doctors right now. In the map below (click through for an interactive version), the dark blue counties have a very low need for physicians, with fewer than 1,000 people per doctor's office. If anything, this map illustrates how much where you live matters for how much healthcare you have access to. The 17,000 residents of Clark County, MS do not have a single primary care doctor in the area. Up in Manhattan there is one doctor for every 500 people.