RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4471 locations in the last 30 days (4618 reports) · Last sighting 2 days 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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/20251807 N FAIRFIELD AVELogan Square1Completed14 daysMobile DeviceCity 311
8/20/20254545 W FOSTER AVEAlbany Park39Completed8 daysMobile DeviceCity 311
8/20/20255258 S NATCHEZ AVEGarfield Ridge23Completed9 daysInternetCity 311
8/20/20251233 W COLUMBIA AVERogers Park49Completed15 daysMobile DeviceCity 311
8/20/20251501 W WASHBURNE AVENear West Side28Completed7 daysAlderman's OfficeCity 311
8/20/20252821 W FULLERTON AVELogan Square1Completed14 daysInternetCity 311
8/20/20253918 W 84TH STAshburn18Completed15 daysInternetCity 311
8/20/20251929 N BISSELL STLincoln Park43Completed16 daysMobile DeviceCity 311
8/20/202510300 S ST LOUIS AVEMount Greenwood19Completed14 daysInternetCity 311
8/20/20251676 W EDGEWATER AVEEdgewater40Completed14 daysMobile DeviceCity 311
8/20/20251055 W BELDEN AVELincoln Park43Completed14 daysPhone CallCity 311
8/20/20251055 W BELDEN AVELincoln Park43Completed14 daysPhone CallCity 311
8/20/20252229 N SEMINARY AVELincoln Park43Completed5 daysPhone CallCity 311
8/20/20251520 E 72ND STSouth Shore8Completed7 daysMobile DeviceCity 311
8/20/20253555 N CENTRAL AVEPortage Park30Completed9 daysPhone CallCity 311
8/20/20253426 W CORTLAND STLogan Square26Completed13 daysInternetCity 311
8/20/20251718 W ALTGELD STLincoln Park32Completed13 daysInternetCity 311
8/20/20255307 N ST LOUIS AVENorth Park39Completed13 daysInternetCity 311
8/20/2025741 W 60TH STEnglewood16Completed6 daysInternetCity 311
8/20/2025849 N DEARBORN STNear North Side42Completed6 daysInternetCity 311
8/20/20253923 W 65TH STWest Lawn23Completed9 daysPhone CallCity 311
8/20/20251921 W ROSCOE STNorth Center32Completed13 daysInternetCity 311
8/20/20257523 N SEELEY AVERogers Park49Completed13 daysMobile DeviceCity 311
8/20/20252809 S WELLS STArmour Square11Completed9 daysMobile DeviceCity 311
8/20/20251326 W MADISON STNear West Side27Completed15 daysMobile DeviceCity 311
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