• Only 14 percent of Philadelphians who have a college degree or higher report drinking bottled water most often at home, compared with a whopping 54 percent of Philadelphians with a high school diploma or less.

  • 15 percent of households with an income of more than $150,000 per year drink bottled water most often while at home, while 59 percent of households with an income of less than $20,000 do; a counterintuitive dynamic since tap water costs one cent per gallon.

  • By race, 18 percent of white residents drink bottled water most often at home, while 63 percent of black and 71 percent of Latino residents do.

  • There are significant differences by gender as well: 50 percent of females compared with 36 percent of males reported drinking bottled water most often at home.

Nina Hoe is the director of evaluation at the Fels Institute of Government at the University of Pennsylvania. ninahoe@upenn.edu