RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4442 locations in the last 30 days (4620 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/7/20265306 N LIEB AVEJefferson Park45Completed3 daysPhone CallCity 311
8/10/20255305 W PATTERSON AVEPortage Park30Completed11 daysPhone CallCity 311
10/16/20255305 W FOSTER AVEJefferson Park45Completed7 daysMobile DeviceCity 311
5/28/20265305 W FLETCHER STBelmont Cragin30Completed6 daysPhone CallCity 311
7/30/20255305 W FLETCHER STBelmont Cragin30Completed9 daysPhone CallCity 311
5/27/20265305 W EDDY STPortage Park30Completed5 daysInternetCity 311
8/29/20265305 W CUYLER AVEPortage Park38Completed12 daysInternetCity 311
7/28/20255305 W CRYSTAL STAustin37Completed8 daysMobile DeviceCity 311
2/23/20265305 W CRYSTAL STAustin37Completed1 dayMobile DeviceCity 311
6/20/20265305 W CRYSTAL STAustin37Completed3 daysMobile DeviceCity 311
10/2/20255305 S NEWLAND AVEGarfield Ridge23Completed5 daysInternetCity 311
5/20/20265305 S NEWCASTLE AVEGarfield Ridge23Completed2 daysInternetCity 311
8/14/20255305 S FRANCISCO AVEGage Park14Completed1 dayPhone CallCity 311
9/10/20255305 S CALIFORNIA AVEGage Park14Completed12 daysAlderman's OfficeCity 311
8/11/20255305 S CALIFORNIA AVEGage Park14Completed10 daysInternetCity 311
5/22/20265305 N NEW ENGLAND AVENorwood Park41Completed4 daysMobile DeviceCity 311
7/5/20265305 N LATROBE AVEJefferson Park45Completed8 daysMobile DeviceCity 311
4/23/20265304 W SCHOOL STPortage Park31Completed1 dayPhone CallCity 311
9/10/20265304 W NEWPORT AVEPortage Park30Completed18 daysPhone CallCity 311
9/17/20265304 W NEWPORT AVEPortage Park30Completed8 daysPhone CallCity 311
9/27/20255304 S OAK PARK AVEGarfield Ridge23Completed9 daysInternetCity 311
6/25/20265304 S INGLESIDE AVEHyde Park20Completed4 daysInternetCity 311
9/3/20255304 S FAIRFIELD AVEGage Park14Completed12 daysInternetCity 311
10/13/20255304 S BISHOP STNew City16Completed8 daysInternetCity 311
6/30/20265304 S BISHOP STNew City16Completed7 daysInternetCity 311
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