RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4409 locations in the last 30 days (4565 reports) · Last sighting 18 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20268005 S CAMPBELL AVEAshburn18Completed13 daysInternetCity 311
12/3/20258510 S KARLOV AVEAshburn18Completed1 dayInternetCity 311
8/22/20263924 W 84TH STAshburn18Completed5 daysPhone CallCity 311
8/11/20262442 W 83RD STAshburn18Completed14 daysMobile DeviceCity 311
1/29/20263848 W 84TH PLAshburn18Completed1 dayPhone CallCity 311
12/2/20253852 W 83RD STAshburn18Completed1 dayInternetCity 311
12/2/20258500 S KNOX AVEAshburn18Completed1 dayPhone CallCity 311
8/7/20263707 W 81ST STAshburn18Completed11 daysInternetCity 311
11/30/20253019 W 77TH STAshburn18Completed2 daysInternetCity 311
12/7/20253817 W 82ND STAshburn18Completed1 dayInternetCity 311
11/18/20257931 S CALIFORNIA AVEAshburn18Completed1 dayInternetCity 311
12/1/20258623 S TRIPP AVEAshburn18Completed1 dayMobile DeviceCity 311
12/1/20258341 S KEATING AVEAshburn18Completed1 dayMobile DeviceCity 311
3/16/20263500 W 79TH PLAshburn18Completed2 daysPhone CallCity 311
7/29/20268508 S KENTON AVEAshburn18Completed13 daysInternetCity 311
8/2/20263715 W 83RD PLAshburn18Completed9 daysInternetCity 311
7/15/20263745 W 80TH STAshburn18Completed5 daysPhone CallCity 311
8/11/20268042 S KILPATRICK AVEAshburn18Completed1 dayPhone CallCity 311
7/30/20258349 S KENNETH AVEAshburn18Completed8 daysMobile DeviceCity 311
8/16/20263539 W 84TH PLAshburn18Completed11 daysPhone CallCity 311
11/18/20258455 S KEDVALE AVEAshburn18Completed1 dayAlderman's OfficeCity 311
6/25/20263426 W 85TH STAshburn18Completed6 daysPhone CallCity 311
9/9/20257942 S TRUMBULL AVEAshburn18Completed13 daysAlderman's OfficeCity 311
6/29/20268653 S TRIPP AVEAshburn18Completed2 daysInternetCity 311
8/10/20263353 W 79TH STAshburn18Completed8 daysMobile DeviceCity 311
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