Chicago Crowned Nation's 'Rattiest' City It tops Orkin's list for rat treatments By Evann Gastaldo, Newser Staff Posted Oct 14, 2014 9:47 AM CDT 32 comments Comments It's not just the Windy City, apparently. (AP Photo/Kiichiro Sato) (Newser) – If you suffer from musophobia, you may want to steer clear of Chicago. The city has been named the "rattiest" in the US by Orkin, according to Crain's Chicago Business. The pest control company released a list of the top 20 rattiest US cities based on rodent treatments it performed in 2013. Poor Chicago has also snagged Orkin's top spot for bedbugs in the past, as well as its top spot for pests overall. The top 10: Chicago Los Angeles Washington, DC-Hagerstown, Md. New York San Francisco-Oakland-San Jose Seattle-Tacoma Detroit Cleveland-Akron-Canton Baltimore Miami-Fort Lauderdale CBS Chicago has the complete top 20.