RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4417 locations in the last 30 days (4578 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/21/20252137 N CLIFTON AVELincoln Park43Completed2 daysMobile DeviceCity 311
10/21/20259710 S GENOA AVEWashington Heights21Completed1 dayMobile DeviceCity 311
10/21/20256007 S MULLIGAN AVEClearing13Completed6 daysPhone CallCity 311
10/21/2025329 W 25TH PLArmour Square11Completed6 daysPhone CallCity 311
10/21/20252444 W 16TH STNear West Side28Completed2 daysInternetCity 311
10/21/20255204 N LOVEJOY AVEJefferson Park45Completed8 daysPhone CallCity 311
10/21/20254709 N MAPLEWOOD AVELincoln Square40Completed6 daysMobile DeviceCity 311
10/21/20252913 N WESTERN AVELogan Square32Completed7 daysMobile DeviceCity 311
10/21/20252912 N WESTERN AVEAvondale35Completed6 daysMobile DeviceCity 311
10/21/20252940 N RIVERWALKLogan Square32Completed7 daysMobile DeviceCity 311
10/21/20253555 S COTTAGE GROVE AVEOakland4Completed2 daysPhone CallCity 311
10/21/20251518 W 99TH STBeverly19Completed6 daysInternetCity 311
10/21/20255009 W BYRON STPortage Park30Completed6 daysPhone CallCity 311
10/21/20253035 S BONFIELD STBridgeport11Completed6 daysPhone CallCity 311
10/21/2025930 W CUYLER AVEUptown46Completed2 daysInternetCity 311
10/21/2025940 W CUYLER AVEUptown46Completed2 daysInternetCity 311
10/21/20257020 N GREENVIEW AVERogers Park49Completed2 daysInternetCity 311
10/21/20252532 N CENTRAL PARK AVELogan Square35Completed6 daysMobile DeviceCity 311
10/21/20257210 S SPRINGFIELD AVEWest Lawn23Completed2 daysPhone CallCity 311
10/21/20255120 S MERRIMAC AVEGarfield Ridge23Completed6 daysPhone CallCity 311
10/21/202510102 S LOWE AVEWashington Heights21Completed7 daysPhone CallCity 311
10/21/20253439 W 115TH PLMount Greenwood19Completed6 daysInternetCity 311
10/21/20252923 N NEW ENGLAND AVEMontclare36Completed6 daysInternetCity 311
10/21/2025345 W 42ND PLFuller Park3Completed2 daysAlderman's OfficeCity 311
10/21/20255623 S OAKLEY AVEGage Park15Completed7 daysAlderman's OfficeCity 311
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