RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4625 locations in the last 30 days (4779 reports) · Last sighting 22 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/5/2026735 N TRUMBULL AVEHumboldt Park27Completed8 daysMobile DeviceCity 311
8/5/20267455 N SEELEY AVERogers Park49Completed13 daysMobile DeviceCity 311
8/5/20264556 W WELLINGTON AVEHermosa31Completed14 daysInternetCity 311
8/5/20263838 N GREENVIEW AVELake View46Completed12 daysInternetCity 311
8/5/20264812 S VINCENNES AVEGrand Boulevard3Completed5 daysPhone CallCity 311
8/5/20262832 W WARREN BLVDEast Garfield Park27Completed8 daysInternetCity 311
8/5/20267138 S AVERS AVEWest Lawn23Completed9 daysPhone CallCity 311
8/5/20263924 W 56TH STWest Elsdon23Completed9 daysPhone CallCity 311
8/5/20263851 W 83RD STAshburn18Completed13 daysInternetCity 311
8/5/20261307 W BYRON STLake View44Completed14 daysPhone CallCity 311
8/5/20263114 W 41ST PLBrighton Park12Completed9 daysPhone CallCity 311
8/5/20263008 N OLEANDER AVEDunning29Completed9 daysMobile DeviceCity 311
8/5/2026310 W DIVISION STNear North Side2Completed5 daysInternetCity 311
8/5/20265901 S TROY STChicago Lawn14Completed12 daysAlderman's OfficeCity 311
8/5/20265900 S TROY STChicago Lawn14Completed12 daysPhone CallCity 311
8/5/20263959 W N BRANCH CHICAGO RIVERAlbany Park39Completed16 daysMobile DeviceCity 311
8/5/20262037 W BIRCHWOOD AVERogers Park49Completed13 daysMobile DeviceCity 311
8/5/20263941 N RAVENSWOOD AVELake View47Completed12 daysPhone CallCity 311
8/5/20263615 N PIONEER AVEDunning38Completed7 daysInternetCity 311
8/5/20261928 W HURON STWest Town36Completed13 daysInternetCity 311
8/5/20261927 W MELROSE STNorth Center32Completed9 daysInternetCity 311
8/5/20267234 S WHIPPLE STChicago Lawn18Completed13 daysPhone CallCity 311
8/5/20265651 N SACRAMENTO AVEWest Ridge50Completed6 daysPhone CallCity 311
8/5/20263520 W CERMAK RDNorth Lawndale24Completed5 daysPhone CallCity 311
8/5/20263915 N OAKLEY AVENorth Center47Completed12 daysInternetCity 311
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