Insider Monkey said Milwaukee, Wisconsin, ranked number on the list because of its "lowest alcohol tax rates in the country, resulting in lower retail and wholesale prices." Milwaukee is a Democratic stronghold with an excessive drinking rate of 24.6%. 

Analysts with Insider Monkey used County Health Rankings and Roadmaps, the US Census Bureau, and the Centers for Disease Control and Prevention data to find metro areas with the highest excessive drinking rates. Only cities with populations of 200,000 or more were analyzed. The rate measures the percentage of a city's adult population that reports binge or heavy drinking in the last month.