RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4590 locations in the last 30 days (4747 reports) · Last sighting 21 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/29/2026901 N HONORE STWest Town36Completed12 daysInternetCity 311
8/29/20261119 N HARDING AVEHumboldt Park37Completed4 daysMobile DeviceCity 311
8/29/20263854 N MOZART STIrving Park33Completed13 daysInternetCity 311
8/29/20261641 N FRANCISCO AVEWest Town26Completed12 daysMobile DeviceCity 311
8/29/20262459 W BERENICE AVENorth Center47Completed16 daysMobile DeviceCity 311
8/29/20264106 W BARRY AVEAvondale31Completed10 daysInternetCity 311
8/29/20264901 W FERDINAND STAustin37Completed12 daysPhone CallCity 311
8/29/2026600 N DEARBORN STNear North Side42Completed13 daysMobile DeviceCity 311
8/29/20262318 W MARQUETTE RDChicago Lawn16Completed17 daysInternetCity 311
8/29/20269307 S BURNSIDE AVEChatham8Completed5 daysInternetCity 311
8/29/20263731 W GIDDINGS STAlbany Park33Completed13 daysMobile DeviceCity 311
8/29/20265347 N BERNARD STNorth Park39Completed16 daysInternetCity 311
8/29/20262049 W SHAKESPEARE AVELogan Square32Completed17 daysInternetCity 311
8/29/20262008 S WABASH AVENear South Side3Completed10 daysMobile DeviceCity 311
8/29/20266848 W FOSTER AVENorwood Park41Completed16 daysMobile DeviceCity 311
8/29/20261715 W BELLE PLAINE AVELake View47Completed13 daysMobile DeviceCity 311
8/29/20265661 W GOODMAN STJefferson Park45Completed16 daysInternetCity 311
8/29/20264539 N SEELEY AVELincoln Square47Completed13 daysMobile DeviceCity 311
8/29/20262854 N TROY STAvondale35Completed16 daysMobile DeviceCity 311
8/29/20264852 W MONROE STAustin28Completed6 daysMobile DeviceCity 311
8/29/20264445 N CAMPBELL AVELincoln Square47Completed13 daysInternetCity 311
8/29/20263238 W BEACH AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
8/29/20262226 W 69TH STChicago Lawn16Completed12 daysInternetCity 311
8/29/20263514 W 59TH PLChicago Lawn14Completed10 daysMobile DeviceCity 311
8/29/20266753 S ST LAWRENCE AVEWoodlawn6Completed10 daysPhone CallCity 311
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