RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4490 locations in the last 30 days (4652 reports) · Last sighting 20 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/5/20252454 N SEMINARY AVELincoln Park43Completed10 daysMobile DeviceCity 311
8/5/20252438 W HADDON AVEWest Town36Completed17 daysMobile DeviceCity 311
8/5/20252454 N SEMINARY AVELincoln Park43Completed10 daysPhone CallCity 311
8/5/20251733 W PETERSON AVEEdgewater40Completed8 daysPhone CallCity 311
8/5/20253157 W 84TH STAshburn18Completed8 daysPhone CallCity 311
8/5/202512116 S LASALLE STWest Pullman9Completed1 dayPhone CallCity 311
8/5/20251916 S THROOP STLower West Side25Completed9 daysMobile DeviceCity 311
8/5/20251319 W CULLERTON STLower West Side25Completed9 daysMobile DeviceCity 311
8/5/20252601 W FITCH AVEWest Ridge50Completed9 daysMobile DeviceCity 311
8/5/20252703 W BIRCHWOOD AVEWest Ridge50Completed9 daysAlderman's OfficeCity 311
8/5/20255922 W BERENICE AVEPortage Park38Completed14 daysAlderman's OfficeCity 311
8/5/20253520 S DR MARTIN LUTHER KING JR DRDouglas4Completed6 daysPhone CallCity 311
8/5/20253214 N PANAMA AVEDunning38Completed16 daysAlderman's OfficeCity 311
8/5/20257509 S PEORIA STAuburn Gresham17Completed8 daysInternetCity 311
8/5/20251720 W 71ST STWest Englewood17Completed10 daysPhone CallCity 311
8/5/20254342 W CERMAK RDNorth Lawndale24Completed8 daysPhone CallCity 311
8/5/2025624 W 61ST STEnglewood16Completed8 daysInternetCity 311
8/5/2025455 W EVERGREEN AVENear North Side27Completed3 daysInternetCity 311
8/5/20254837 S HONORE STNew City15Completed7 daysAlderman's OfficeCity 311
8/5/20253444 W GRENSHAW STNorth Lawndale24Completed6 daysPhone CallCity 311
8/5/20251628 N WOOD STWest Town32Completed10 daysAlderman's OfficeCity 311
8/5/20255555 S TALMAN AVEGage Park15Completed7 daysInternetCity 311
8/5/20253708 N PAULINA STLake View47Completed13 daysPhone CallCity 311
8/5/20251464 W OHIO STWest Town1Completed9 daysInternetCity 311
8/5/20252412 S HARDING AVESouth Lawndale22Completed16 daysPhone CallCity 311
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