ZIP codes


ZIP Code boundaries overlayed with the City of Flint's boundary. Map: Richard Casey Sadler.ZIP Code boundaries overlayed with the City of Flint's boundary. Map: Richard Casey Sadler.

How the ‘Quirky Geography’ of ZIP Codes Obscured Flint’s Lead Problem

Richard Casey Sadler, an assistant professor at Michigan State University discusses how the Michigan Department of Health and Human Services’ reliance on using ZIP Code level data obscured the link between Flint residents and lead exposure.

Robert Kosara's Zip Scribble Map

ZIP Code Data is “Commercially Sensitive” Per the US Postal Service

Robb Shecter of the Weblaws.org site wanted to map out restaurant health inspections in Multnomah County, Oregon as part of his efforts to create apps to open up government information by increasing access.  The data from the county on each restaurant doesn’t always contain place information such as the city name. […]