RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4539 locations in the last 30 days (4686 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20253857 W FOSTER AVEAlbany Park39Completed9 daysInternetCity 311
9/14/2025917 W EASTWOOD AVEUptown46Completed9 daysPhone CallCity 311
9/14/2025911 W EASTWOOD AVEUptown46Completed9 daysPhone CallCity 311
9/14/2025900 W WILSON AVEUptown46Completed9 daysPhone CallCity 311
9/15/20254515 N WESTERN AVELincoln Square47Completed10 daysInternetCity 311
9/15/20253555 W MEDILL AVELogan Square35Completed10 daysMobile DeviceCity 311
9/15/20254219 S CAMPBELL AVEBrighton Park12Completed7 daysPhone CallCity 311
9/15/20255708 W MADISON STAustin29Completed10 daysPhone CallCity 311
9/15/20255402 S LARAMIE AVEGarfield Ridge23Completed7 daysInternetCity 311
9/15/20259226 S ESSEX AVECalumet Heights7Completed8 daysPhone CallCity 311
9/15/20253348A N CLIFTON AVELake View44Completed8 daysPhone CallCity 311
9/15/202510022 S HALSTED STWashington Heights21Completed10 daysPhone CallCity 311
9/15/20254502 W MAYPOLE AVEWest Garfield Park28Completed10 daysMobile DeviceCity 311
9/15/20253611 S CALUMET AVEDouglas4Completed8 daysInternetCity 311
9/15/20252921 N NEVA AVEMontclare29Completed8 daysMobile DeviceCity 311
9/15/20252206 W EASTWOOD AVELincoln Square47Completed10 daysMobile DeviceCity 311
9/15/20257741 W VICTORIA STNorwood Park41Completed9 daysPhone CallCity 311
9/15/20255543 S THROOP STWest Englewood16Completed9 daysPhone CallCity 311
9/15/20254551 W DIVERSEY AVEHermosa31Completed9 daysPhone CallCity 311
9/15/20251727 W NEWPORT AVELake View47Completed10 daysMobile DeviceCity 311
9/15/20251318 N ASTOR STNear North Side43Completed0 daysPhone CallCity 311
9/15/20257718 W ADDISON STDunning38Completed8 daysInternetCity 311
9/15/20257723 W PATTERSON AVEDunning38Completed8 daysInternetCity 311
9/15/20256440 S JUSTINE STWest Englewood16Completed8 daysPhone CallCity 311
9/15/20254857 N MCVICKER AVEJefferson Park45Completed9 daysPhone CallCity 311
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