us_districts.csv lists Illinois as having an at large district

[wioux]

For several zipcodes (e.g. https://github.com/EFForg/call-congress/blob/master/call_server/political_data/data/us_districts.csv#L5261)

[jlev]

This data is now quite out of date, doesn't reflect redistricting in 2016, and won't be further updated by Sunlight foundation. I recommend switching to the open data I've compiled from census info and released at https://github.com/spacedogXYZ/us_zipcodes_congress. Minor changes to the parsing code in OpenSourceActivismTech@eb885d0