Maptitude is the best mapping software for business intelligence! The 2017 Maptitude Country Packages include an updated point landmark database that includes thousands of retail stores, including pharmacies. The map below shows the predominant pharmacy chain by county. Currently Walgreens, which is predominant in 628 counties, is attempting to merge with Rite Aid, which is predominant in 450 counties. The third major national chain, CVS, is predominant in 648 counties.
Map: Created with Maptitude Mapping Software by Caliper, June 2017