RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4359 locations in the last 30 days (4541 reports) · Last sighting yesterday

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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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/22/20266124 W ROSCOE STDunning30Completed4 daysMobile DeviceCity 311
5/22/20266310 W HENDERSON STDunning30Completed4 daysPhone CallCity 311
7/28/20266126 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
10/13/20268156 W BELMONT AVEDunning38Completed13 daysInternetCity 311
11/20/20256200 W BELMONT AVEDunning30Completed1 dayAlderman's OfficeCity 311
3/11/20266104 W WARWICK AVEDunning38Completed1 dayPhone CallCity 311
10/25/20266144 W GRACE STDunning38Open—Mobile DeviceCity 311
11/6/20253227 N NEWLAND AVEDunning36Completed4 daysPhone CallCity 311
8/28/20263909 N PAGE AVEDunning38Completed14 daysInternetCity 311
6/28/20266255 W SCHOOL STDunning30Completed8 daysInternetCity 311
11/3/20257934 W ADDISON STDunning38Completed3 daysPhone CallCity 311
9/16/20253347 N PANAMA AVEDunning38Completed9 daysInternetCity 311
9/16/20253349 N PANAMA AVEDunning38Completed9 daysInternetCity 311
9/22/20256025 W WAVELAND AVEDunning38Completed1 dayPhone CallCity 311
3/4/20263450 N NORMANDYDunning38Completed1 daySalesforce Mobile AppCity 311
8/24/20263451 N OVERHILL AVEDunning38Completed11 daysAlderman's OfficeCity 311
11/8/20253223 N ORANGE AVEDunning38Completed2 daysPhone CallCity 311
9/16/20253351 N PANAMA AVEDunning38Completed9 daysInternetCity 311
9/24/20257028 W SCHOOL STDunning38Completed9 daysPhone CallCity 311
4/10/20263224 N OSAGE AVEDunning38Completed3 daysPhone CallCity 311
3/13/20263908 N NORA AVEDunning38Completed4 daysAlderman's OfficeCity 311
9/28/20263440 N OPAL AVEDunning38Completed16 daysMobile DeviceCity 311
3/4/20263451 N RUTHERFORDDunning38Completed1 daySalesforce Mobile AppCity 311
10/26/20263622 N OSCEOLA AVEDunning38Open—Phone CallCity 311
9/11/20256215 W MELROSE STDunning30Completed11 daysMobile DeviceCity 311
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