RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4286 locations in the last 30 days (4442 reports) · Last sighting 2 days 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/11/20251437 E 65TH STWoodlawn5Completed2 daysPhone CallCity 311
1/25/20262136 N KARLOV AVEHermosa35Completed2 daysPhone CallCity 311
12/6/20253823 W 69TH STWest Lawn23Completed2 daysMobile DeviceCity 311
5/27/20267104 S PRAIRIE AVEGreater Grand Crossing6Completed2 daysPhone CallCity 311
10/20/20255701 S SAYRE AVEGarfield Ridge13Completed2 daysPhone CallCity 311
4/14/20268711 W CATHERINE AVEO'Hare41Completed2 daysPhone CallCity 311
3/1/20261000 W LELAND AVEUptown46Completed2 daysMobile DeviceCity 311
5/25/20262151 W 24TH STLower West Side25Completed2 daysMobile DeviceCity 311
12/22/20253300 N CENTRAL PARK AVEAvondale30Completed2 daysAlderman's OfficeCity 311
1/7/20264902 W POTOMAC AVEAustin37Completed2 daysPhone CallCity 311
6/9/20261727 W 90TH PLWashington Heights21Completed2 daysPhone CallCity 311
4/18/20265354 W AGATITE AVEPortage Park45Completed2 daysInternetCity 311
2/18/20263336 N PACIFIC AVEDunning38Completed2 daysMobile DeviceCity 311
3/9/20266419 N GLENWOOD AVERogers Park49Completed2 daysPhone CallCity 311
3/21/20263037 W WILSON AVEAlbany Park33Completed2 daysMobile DeviceCity 311
5/9/20265847 N KENMORE AVEEdgewater48Completed2 daysMobile DeviceCity 311
5/19/20266419 S HARLEM AVEClearing13Completed2 daysMobile DeviceCity 311
7/7/20266149 N BROADWAYEdgewater48Completed2 daysInternetCity 311
6/22/20269215 S WOODLAWN AVEBurnside8Completed2 daysPhone CallCity 311
5/26/20266641 S RICHMOND STChicago Lawn15Completed2 daysInternetCity 311
4/20/20268015 S MERRILL AVESouth Chicago8Completed2 daysInternetCity 311
10/7/2025350 N CANAL STNear West Side34Completed2 daysAlderman's OfficeCity 311
1/7/20266449 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
4/29/20264551 S SACRAMENTO AVEBrighton Park12Completed2 daysPhone CallCity 311
1/7/20266477 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
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