RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4405 locations in the last 30 days (4568 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.

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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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/8/20252649 W BALMORAL AVELincoln Square40Completed3 daysPhone CallCity 311
8/8/20252456 W BERWYN AVELincoln Square40Completed3 daysPhone CallCity 311
8/8/20256942 N OLCOTT AVEEdison Park41Completed3 daysPhone CallCity 311
8/8/20256663 W HAYES AVENorwood Park41Completed3 daysPhone CallCity 311
8/8/20256050 S SANGAMON STEnglewood16Completed7 daysPhone CallCity 311
8/8/20255000 S PRAIRIE AVEGrand Boulevard3Completed5 daysPhone CallCity 311
8/8/20252731 W ESTES AVEWest Ridge50Completed7 daysPhone CallCity 311
8/8/20256305 W 59TH STClearing13Completed12 daysMobile DeviceCity 311
8/8/20256643 N FRANCISCO AVEWest Ridge50Completed7 daysMobile DeviceCity 311
8/8/20253240 W CORTEZ STHumboldt Park26Completed6 daysInternetCity 311
8/8/20256210 S PARKSIDE AVEClearing13Completed12 daysMobile DeviceCity 311
8/8/20254125 N LEAMINGTON AVEPortage Park38Completed12 daysMobile DeviceCity 311
8/8/20252640 N WHIPPLE STLogan Square1Completed11 daysInternetCity 311
8/8/20255354 W AGATITE AVEPortage Park45Completed12 daysInternetCity 311
8/8/20255525 S PULASKI RDWest Elsdon23Completed12 daysInternetCity 311
8/8/20253912 W CORTLAND STHermosa26Completed6 daysMobile DeviceCity 311
8/8/20252457 N FAIRFIELD AVELogan Square1Completed11 daysInternetCity 311
8/8/20256647 S WASHTENAW AVEChicago Lawn16Completed13 daysPhone CallCity 311
8/8/20252351 W ADAMS STNear West Side27Completed11 daysPhone CallCity 311
8/8/20255835 N WINTHROP AVEEdgewater48Completed11 daysMobile DeviceCity 311
8/8/20255924 S NORMANDY AVEClearing13Completed12 daysAlderman's OfficeCity 311
8/8/20252143 W JACKSON BLVDNear West Side27Completed11 daysPhone CallCity 311
8/8/20252019 N KARLOV AVEHermosa26Completed6 daysPhone CallCity 311
8/8/20251812 W HURON STWest Town36Completed13 daysMobile DeviceCity 311
8/8/20256016 W BERENICE AVEDunning38Completed12 daysMobile DeviceCity 311
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