RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4621 locations in the last 30 days (4792 reports) · Last sighting 10 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/27/20261013 S CLAREMONT AVENear West Side28Completed1 dayMobile DeviceCity 311
8/20/20261013 S OAKLEY BLVDNear West Side28Completed8 daysPhone CallCity 311
2/27/20261013 W 18TH PLLower West Side25Completed4 daysAlderman's OfficeCity 311
2/8/20261013 W 18TH PLLower West Side25Completed2 daysMobile DeviceCity 311
6/19/20261013 W 18TH PLLower West Side25Completed6 daysMobile DeviceCity 311
8/26/202610141 S CALIFORNIA AVEBeverly19Completed8 daysMobile DeviceCity 311
8/27/202610143 S WASHTENAW AVEBeverly19Completed1 dayPhone CallCity 311
8/12/202610143 S WASHTENAW AVEBeverly19Completed6 daysPhone CallCity 311
9/8/202610146 S DR MARTIN LUTHER KING JR DRRoseland9Completed3 daysInternetCity 311
7/29/202510146 S WINSTON AVEWashington Heights21Completed7 daysPhone CallCity 311
5/27/202610147 S BELL AVEBeverly19Completed2 daysPhone CallCity 311
8/14/202610147 S WASHTENAW AVEBeverly19Completed4 daysAlderman's OfficeCity 311
8/14/202610148 S INDIANA AVERoseland9Completed12 daysInternetCity 311
6/1/202610148 S SANGAMON STWashington Heights21Completed1 dayPhone CallCity 311
6/4/202610148 S SANGAMON STWashington Heights21Completed4 daysPhone CallCity 311
7/18/202610149 S LASALLE STRoseland9Completed9 daysInternetCity 311
12/23/202510149 S LASALLE STRoseland9Completed1 dayInternetCity 311
10/28/202510149 S WENTWORTH AVERoseland9Completed6 daysInternetCity 311
8/22/20261014 N DAMEN AVEWest Town1Completed12 daysInternetCity 311
7/15/20261014 N DAMEN AVEWest Town1Completed12 daysInternetCity 311
7/8/20261014 W 19TH STLower West Side25Completed6 daysMobile DeviceCity 311
9/30/20251014 W OAKDALE AVELake View44Completed9 daysPhone CallCity 311
5/28/202610151 S BELL AVEBeverly19Completed1 dayPhone CallCity 311
6/23/202610151 S BELL AVEBeverly19Completed2 daysPhone CallCity 311
5/13/202610151 S BELL AVEBeverly19Completed1 dayPhone CallCity 311
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