RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4748 locations in the last 30 days (4906 reports) · Last sighting 13 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.

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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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20265229 W CARMEN AVEJefferson Park45Completed14 daysInternetCity 311
8/18/20266943 W 63RD STClearing13Completed9 daysPhone CallCity 311
8/18/20265335 S MOZART STGage Park14Completed12 daysInternetCity 311
8/18/20266211 S KOLIN AVEWest Lawn13Completed9 daysInternetCity 311
8/18/20268524 W CATHERINE AVEO'Hare41Completed14 daysMobile DeviceCity 311
8/18/20262519 N HALSTED STLincoln Park43Completed14 daysMobile DeviceCity 311
8/18/20265750 N FRANCISCO AVEWest Ridge50Completed9 daysMobile DeviceCity 311
8/18/20267134 W FARRAGUT AVENorwood Park41Completed1 dayMobile DeviceCity 311
8/18/20261027 W VERNON PARK PLNear West Side34Completed6 daysInternetCity 311
8/18/20265357 S MELVINA AVEGarfield Ridge23Completed13 daysInternetCity 311
8/18/20266000 S NORMANDY AVEClearing13Completed9 daysInternetCity 311
8/18/20262115 W MORSE AVEWest Ridge40Completed13 daysMobile DeviceCity 311
8/18/20263318 N LOCKWOOD AVEPortage Park31Completed15 daysInternetCity 311
8/18/20264325 N KENMORE AVEUptown46Completed14 daysMobile DeviceCity 311
8/18/2026801 W SHERIDAN RDLake View46Completed14 daysMobile DeviceCity 311
8/18/20262060 W RANDOLPH STNear West Side27Completed13 daysPhone CallCity 311
8/18/20262646 N LARAMIE AVEBelmont Cragin31Completed13 daysMobile DeviceCity 311
8/18/20261152 W NEWPORT AVELake View44Completed13 daysMobile DeviceCity 311
8/18/20267605 S LANGLEY AVEGreater Grand Crossing6Completed10 daysPhone CallCity 311
8/18/20266108 N KILBOURN AVEForest Glen39Completed10 daysMobile DeviceCity 311
8/18/20265440 N ASHLAND AVEEdgewater40Completed13 daysInternetCity 311
8/18/20265942 N ST LOUIS AVENorth Park39Completed2 daysMobile DeviceCity 311
8/18/20265110 W EDDY STPortage Park31Completed13 daysPhone CallCity 311
8/18/20263340 W 60TH STChicago Lawn14Completed13 daysPhone CallCity 311
8/18/20264551 W WRIGHTWOOD AVEHermosa31Completed13 daysInternetCity 311
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