RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4469 locations in the last 30 days (4629 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/20254709 N KENMORE AVEUptown46Completed16 daysMobile DeviceCity 311
8/16/20264700 N RACINE AVEUptown46Completed15 daysMobile DeviceCity 311
8/9/20261728 W FARWELL AVERogers Park49Completed15 daysPhone CallCity 311
8/26/20263349S S PARNELL AVEBridgeport11Completed15 daysInternetCity 311
8/3/20263504 N FREMONT STLake View44Completed15 daysMobile DeviceCity 311
8/9/20261861 N DAYTON STLincoln Park43Completed15 daysInternetCity 311
8/3/20264893 N MASON AVEJefferson Park45Completed15 daysInternetCity 311
8/9/20263819 N SEELEY AVENorth Center47Completed15 daysInternetCity 311
8/23/20252439 W CULLOM AVENorth Center47Completed15 daysMobile DeviceCity 311
8/23/20261820 S LEAVITT STLower West Side25Completed15 daysMobile DeviceCity 311
8/15/20265318 W WINNEMAC AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/30/20262442 N SOUTHPORT AVELincoln Park32Completed15 daysInternetCity 311
8/17/20251940 N MOHAWK STLincoln Park43Completed15 daysMobile DeviceCity 311
8/17/20251813 N ORCHARD STLincoln Park43Completed15 daysMobile DeviceCity 311
8/3/20262310 N LINCOLN AVELincoln Park43Completed15 daysInternetCity 311
8/24/20261427 W EDGEWATER AVEEdgewater48Completed15 daysMobile DeviceCity 311
8/2/20255317 N CLARK STEdgewater48Completed15 daysMobile DeviceCity 311
8/3/20268230 S SOUTH SHORE DRSouth Chicago7Completed15 daysInternetCity 311
8/29/20265942 W 60TH STClearing13Completed15 daysMobile DeviceCity 311
8/3/202511657 S NHegewisch10Completed15 daysMobile DeviceCity 311
8/19/20251342 N MONTICELLO AVEHumboldt Park26Completed15 daysMobile DeviceCity 311
8/4/20252554 N NORMANDY AVEMontclare36Completed15 daysMobile DeviceCity 311
8/8/20261133 W NORTH SHORE AVERogers Park49Completed15 daysPhone CallCity 311
8/30/20265663 W AINSLIE STJefferson Park45Completed15 daysMobile DeviceCity 311
8/10/2026839 N KILDARE AVEHumboldt Park37Completed15 daysInternetCity 311
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