RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4285 locations in the last 30 days (4469 reports) · Last sighting 18 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/25/20252500 N ASHLAND AVELincoln Park32Completed3 daysPhone CallCity 311
11/25/20256425 S HARLEM AVEClearing13Completed1 dayPhone CallCity 311
11/25/20251423 W 110TH PLMorgan Park21Completed1 dayPhone CallCity 311
11/25/20257150 S CALIFORNIA AVEChicago Lawn18Completed3 daysPhone CallCity 311
11/25/20256012 S MOODY AVEClearing13Completed1 dayAlderman's OfficeCity 311
11/25/20256807 S OAKLEY AVEChicago Lawn16Completed3 daysPhone CallCity 311
11/25/20252546 W 118TH STMorgan Park19Completed7 daysPhone CallCity 311
11/25/2025912 N AVERS AVEHumboldt Park37Completed3 daysPhone CallCity 311
11/25/20253918 W 107TH STMount Greenwood19Completed7 daysPhone CallCity 311
11/25/20255323 S GREENWOOD AVEHyde Park5Completed1 dayPhone CallCity 311
11/25/20251304 N MASONAustin29Completed3 daysSalesforce Mobile AppCity 311
11/25/20252241 N WAYNE AVELincoln Park2Completed0 daysAlderman's OfficeCity 311
11/25/20255910 W DAKIN STPortage Park38Completed1 dayAlderman's OfficeCity 311
11/25/20256540 S HOYNE AVEWest Englewood16Completed3 daysPhone CallCity 311
11/25/20253065 N AVERS AVEAvondale31Completed3 daysPhone CallCity 311
11/25/20252613 W THOMAS STWest Town36Completed3 daysPhone CallCity 311
11/25/2025127 N LOREL AVEAustin37Completed3 daysPhone CallCity 311
11/25/20257808 S HALSTED STAuburn Gresham17Completed3 daysPhone CallCity 311
11/25/20252925 S WALLACE STBridgeport11Completed6 daysAlderman's OfficeCity 311
11/25/20257032 W SCHOOL STDunning38Completed1 dayPhone CallCity 311
11/25/20255220 W MELROSE STPortage Park31Completed3 daysPhone CallCity 311
11/25/20256555 W BELMONT AVEBelmont Cragin36Completed3 daysPhone CallCity 311
11/25/20255104 W CORNELIA AVEPortage Park31Completed3 daysPhone CallCity 311
11/25/20252941 N HAMLIN AVEAvondale31Completed3 daysPhone CallCity 311
11/25/20254351 S SACRAMENTO AVEBrighton Park12Completed1 dayMobile DeviceCity 311
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