RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4617 locations in the last 30 days (4773 reports) · Last sighting 17 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.

32080fewer → more

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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/4/20263100 W CHASE AVEWest Ridge50Completed10 daysPhone CallCity 311
8/4/20263100 W CHASE AVEWest Ridge50Completed10 daysPhone CallCity 311
8/4/20267837 S CONSTANCE AVESouth Shore8Completed15 daysPhone CallCity 311
8/4/2026464 W 28TH STBridgeport11Completed10 daysInternetCity 311
8/4/2026467 W 27TH STBridgeport11Completed10 daysInternetCity 311
8/4/2026481 W 27TH STBridgeport11Completed10 daysInternetCity 311
8/4/20262638 S WELLS STArmour Square11Completed9 daysPhone CallCity 311
8/4/20262239 W 69TH STChicago Lawn17Completed9 daysPhone CallCity 311
8/4/20269626 S VAN VLISSINGEN RDSouth Deering7Completed15 daysPhone CallCity 311
8/4/20261804 W HADDON AVEWest Town1Completed13 daysMobile DeviceCity 311
8/4/20264133 N PULASKI RDIrving Park39Completed13 daysPhone CallCity 311
8/4/20269137 S COTTAGE GROVE AVEChatham8Completed15 daysInternetCity 311
8/4/20261100 W 25TH STBridgeport11Completed9 daysMobile DeviceCity 311
8/4/20265035 W POTOMAC AVEAustin37Completed1 dayInternetCity 311
8/4/20268227 S WABASH AVEChatham6Completed6 daysMobile DeviceCity 311
8/4/2026314 W 107TH PLRoseland21Completed10 daysInternetCity 311
8/4/20261639 N NORTH PARK AVELincoln Park2Completed6 daysInternetCity 311
8/4/202611359 S MILLARD AVEMount Greenwood19Completed9 daysPhone CallCity 311
8/4/20264925 N TROY STAlbany Park33Completed13 daysMobile DeviceCity 311
8/4/20261718 W ROSCOE STLake View47Completed10 daysMobile DeviceCity 311
8/4/20262523 N FRANCISCO AVELogan Square1Completed10 daysInternetCity 311
8/4/20262311 W WASHINGTON BLVDNear West Side27Completed9 daysPhone CallCity 311
8/4/2026538 W 61ST PLEnglewood20Completed6 daysInternetCity 311
8/4/2026534 W 61ST PLEnglewood20Completed6 daysInternetCity 311
8/4/2026532 W 61ST PLEnglewood20Completed6 daysInternetCity 311
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