RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4620 locations in the last 30 days (4772 reports) · Last sighting 19 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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/20/20251041 N WINCHESTER AVEWest Town1Completed1 dayPhone CallCity 311
2/25/20264349 S HERMITAGE AVENew City15Completed1 dayMobile DeviceCity 311
5/5/20265330 W 54TH STGarfield Ridge23Completed1 dayPhone CallCity 311
3/10/20267815 S LAFLIN STAuburn Gresham17Completed1 dayInternetCity 311
10/29/20252035 N NAGLE AVEBelmont Cragin36Completed1 dayPhone CallCity 311
10/30/20252033 W BIRCHWOOD AVERogers Park49Completed1 dayInternetCity 311
3/26/20265826 N ELSTON AVEJefferson Park45Completed1 dayPhone CallCity 311
1/8/20262225 W ADAMS STNear West Side27Completed1 dayPhone CallCity 311
4/16/20263940 W DICKENS AVELogan Square35Completed1 dayPhone CallCity 311
6/22/20262701 S PRINCETON AVEArmour Square11Completed1 dayPhone CallCity 311
6/22/20262927 W CHASE AVEWest Ridge50Completed1 dayPhone CallCity 311
4/2/20262019 W ADDISON STNorth Center47Completed1 dayMobile DeviceCity 311
2/26/202610018 S PRINCETON AVERoseland9Completed1 dayPhone CallCity 311
12/3/20255610 S MERRIMAC AVEGarfield Ridge13Completed1 dayPhone CallCity 311
12/4/20258252 S ADA STAuburn Gresham17Completed1 dayPhone CallCity 311
4/13/20264513 N LOWELL AVEIrving Park39Completed1 dayAlderman's OfficeCity 311
7/15/20268344 S HOYNE AVEAuburn Gresham18Completed1 dayPhone CallCity 311
2/23/20265936 S MICHIGAN AVEWashington Park20Completed1 dayPhone CallCity 311
6/15/202610409 S AVENUE EEast Side10Completed1 dayWalk-inCity 311
1/12/20261457 N HAMLIN AVEHumboldt Park26Completed1 dayInternetCity 311
4/16/20267451 N CAMPBELL AVEWest Ridge50Completed1 dayPhone CallCity 311
2/9/20265121 N KENTON AVEAlbany Park39Completed1 dayPhone CallCity 311
4/14/20266455 S NORMANDY AVEClearing13Completed1 dayInternetCity 311
10/29/20253118 N CLIFTON AVELake View44Completed1 dayInternetCity 311
11/3/20255524 S HONORE STWest Englewood16Completed1 dayPhone CallCity 311
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