RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4594 locations in the last 30 days (4746 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/4/20263460 N LARAMIE AVEPortage Park31Completed15 daysPhone CallCity 311
8/4/2026514 W 72ND STEnglewood6Completed6 daysPhone CallCity 311
8/4/2026400 S CENTRAL PARK AVEEast Garfield Park28Completed2 daysInternetCity 311
8/4/20264904 W PATTERSON AVEPortage Park30Completed9 daysAlderman's OfficeCity 311
8/4/20261424 N KEELER AVEHumboldt Park36Completed13 daysAlderman's OfficeCity 311
8/4/20261425 N STATE STNear North Side43Completed15 daysPhone CallCity 311
8/4/20266205 N CICERO AVEForest Glen39Completed14 daysInternetCity 311
8/4/20261252 S TROY STNorth Lawndale24Completed6 daysPhone CallCity 311
8/4/20262738 W BALMORAL AVELincoln Square40Completed8 daysMobile DeviceCity 311
8/4/20262439 W WALTON STWest Town36Completed13 daysInternetCity 311
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
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