RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4606 locations in the last 30 days (4758 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/4/20268711 W CATHERINE AVEO'Hare41Completed15 daysPhone CallCity 311
8/4/20261833 W NORWOOD STWest Ridge40Completed14 daysPhone CallCity 311
8/4/20261917 W GRACE STNorth Center47Completed13 daysInternetCity 311
8/4/20264701 W PETERSON AVEForest Glen39Completed14 daysMobile DeviceCity 311
8/4/20261365 N LEAVITT STWest Town1Completed13 daysInternetCity 311
8/4/20263350 N KARLOV AVEIrving Park30Completed9 daysInternetCity 311
8/4/20264351 W DRUMMOND PLHermosa31Completed15 daysAlderman's OfficeCity 311
8/4/20264926 N WESTERN AVELincoln Square40Completed8 daysInternetCity 311
8/4/20263121 W CHASE AVEWest Ridge50Completed10 daysAlderman's OfficeCity 311
8/4/2026636 W BUCKINGHAM PLLake View44Completed15 daysInternetCity 311
8/4/20262139 W ROSCOE STNorth Center32Completed10 daysMobile DeviceCity 311
8/4/20265729 S ARCHER AVEGarfield Ridge23Completed9 daysAlderman's OfficeCity 311
8/4/20265148 S NEW ENGLAND AVEGarfield Ridge23Completed9 daysPhone CallCity 311
8/4/20264509 N BERNARD STAlbany Park33Completed13 daysPhone CallCity 311
8/4/202610615 S SANGAMON STWashington Heights21Completed10 daysPhone CallCity 311
8/4/20265474 S GREENWOOD AVEHyde Park5Completed2 daysMobile DeviceCity 311
8/4/20261145 W FARWELL AVERogers Park49Completed14 daysInternetCity 311
8/4/20263837 W 83RD STAshburn18Completed10 daysInternetCity 311
8/4/20265834 S OAK PARK AVEGarfield Ridge13Completed9 daysMobile DeviceCity 311
8/4/202611537 S PERRY AVEWest Pullman9Completed14 daysInternetCity 311
8/4/20266235 N RAVENSWOOD AVEEdgewater40Completed14 daysInternetCity 311
8/4/20266521 S VERNON AVEWoodlawn20Completed1 dayPhone CallCity 311
8/4/20263235 W OLIVE AVENorth Park39Completed10 daysPhone CallCity 311
8/4/20261830 N RICHMOND STLogan Square26Completed13 daysPhone CallCity 311
8/4/20262223 W WELLINGTON AVENorth Center32Completed6 daysPhone CallCity 311
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