RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4525 locations in the last 30 days (4680 reports) · Last sighting 23 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20261308 W 99TH STWashington Heights21Completed9 daysPhone CallCity 311
9/1/20265412 N NASHVILLE AVENorwood Park41Completed13 daysPhone CallCity 311
9/1/20263632 N NEVA AVEDunning38Completed14 daysPhone CallCity 311
9/1/20263041 N ODELL AVEDunning29Completed3 daysInternetCity 311
9/1/20263240 W 115TH STMount Greenwood19Completed3 daysPhone CallCity 311
9/1/20263632 N NEVA AVEDunning38Completed14 daysPhone CallCity 311
9/1/20261637 N MONITOR AVEAustin29Completed3 daysMobile DeviceCity 311
9/1/20263801 W 66TH STWest Lawn23Completed14 daysAlderman's OfficeCity 311
9/1/202611205 S ST LOUIS AVEMount Greenwood19Completed2 daysAlderman's OfficeCity 311
9/1/20261115 W 17TH STLower West Side25Completed10 daysMobile DeviceCity 311
9/1/20263406 N HALSTED STLake View44Completed10 daysPhone CallCity 311
9/1/20266222 S VERNON AVEWoodlawn20Completed8 daysPhone CallCity 311
9/1/20264202 S VINCENNES AVEGrand Boulevard3Completed7 daysInternetCity 311
9/1/20264208 S VINCENNES AVEGrand Boulevard3Completed7 daysInternetCity 311
9/1/20261721 W JULIAN STWest Town1Completed14 daysMobile DeviceCity 311
9/1/20261449 W 16TH STLower West Side25Completed7 daysMobile DeviceCity 311
9/1/20262814 W FARRAGUT AVELincoln Square39Completed13 daysPhone CallCity 311
9/1/20263637 N ARTESIAN AVENorth Center47Completed1 dayPhone CallCity 311
9/1/20261121 W LILL AVELincoln Park43Completed10 daysPhone CallCity 311
9/1/20261601 W MONTROSE AVELake View47Completed15 daysPhone CallCity 311
9/1/20263520 N KEATING AVEPortage Park30Completed10 daysAlderman's OfficeCity 311
9/1/20262426 W EASTWOOD AVELincoln Square47Completed1 dayPhone CallCity 311
9/1/2026444 W ENGLEWOOD AVEEnglewood20Completed1 dayPhone CallCity 311
9/1/202612439 S UNION AVEWest Pullman9Completed10 daysPhone CallCity 311
9/1/202610509 S LA SALLE STRoseland9Completed10 daysPhone CallCity 311
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