US-CDC just
released a study on the prevalence of binge drinking in the US, based on surveying 457,677 Americans ages 18-65.
Graphic of geographic prevalence:
As in prior studies, young white men with higher income and education levels reported binge-drinking the most (though number of drinks typically consumed when binge-drinking was somewhat higher among lower-income respondents). The geographic distribution is perhaps partly explained by those trends; no comment in the study as to whether climate/sunlight might also be a factor.