RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4582 locations in the last 30 days (4737 reports) · Last sighting 20 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.

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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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/29/20266128 S LAFLIN STWest Englewood16Completed5 daysMobile DeviceCity 311
10/22/20256128 S CHAMPLAIN AVEWoodlawn20Completed5 daysMobile DeviceCity 311
6/26/20266128 S CHAMPLAIN AVEWoodlawn20Completed4 daysMobile DeviceCity 311
9/14/20266128 S CHAMPLAIN AVEWoodlawn20Completed10 daysMobile DeviceCity 311
2/23/20266128 S CHAMPLAIN AVEWoodlawn20Completed1 dayInternetCity 311
8/18/20256127 W GRACE STDunning38Completed4 daysMobile DeviceCity 311
8/3/20266127 W CORNELIA AVEDunning30Completed10 daysMobile DeviceCity 311
10/18/20256127 W CORNELIA AVEDunning30Completed6 daysMobile DeviceCity 311
11/6/20256127 S PARKSIDE AVEClearing13Completed1 dayPhone CallCity 311
7/6/20266127 S NARRAGANSETT AVEClearing13Completed8 daysInternetCity 311
5/28/20266127 S MCVICKER AVEClearing13Completed1 dayMobile DeviceCity 311
7/13/20266127 S KOLIN AVEWest Lawn13Completed8 daysInternetCity 311
5/26/20266127 S HONORE STWest Englewood15Completed2 daysPhone CallCity 311
8/6/20256127 S ELLIS AVEWoodlawn20Completed8 daysPhone CallCity 311
4/18/20266127 N WASHTENAW AVEWest Ridge40Completed3 daysMobile DeviceCity 311
6/27/20266127 N TALMAN AVEWest Ridge40Completed4 daysPhone CallCity 311
9/17/20266127 N TALMAN AVEWest Ridge40Completed12 daysPhone CallCity 311
10/5/20266127 N TALMAN AVEWest Ridge40Open—Phone CallCity 311
7/19/20266127 N TALMAN AVEWest Ridge40Completed9 daysPhone CallCity 311
6/22/20266127 N NORTHWEST HWYNorwood Park41Completed3 daysMobile DeviceCity 311
7/4/20266127 N KIRKWOOD AVEForest Glen39Completed9 daysInternetCity 311
5/12/20266127 N FRANCISCO AVEWest Ridge50Completed2 daysAlderman's OfficeCity 311
7/28/20266126 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
8/10/20266126 W DAKIN STDunning38Completed16 daysPhone CallCity 311
4/12/20266126 S TRIPP AVEWest Lawn13Completed2 daysMobile DeviceCity 311
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