Living in well-to-do Washington Park or in the Valverde neighborhood on Denver’s west side can mean a difference in average life expectancy of 11 years. Depression and childhood obesity rates are four times higher in some Denver neighborhoods, and tobacco use is six times higher in certain areas of the city. The health disparities are severe, and thanks to data emerging from death certificates and the electronic health records of tens of thousands of Denver residents, public health officials can map the variance down to specific pockets of town.