RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4531 locations in the last 30 days (4679 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.

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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/30/20256666 W HAYES AVENorwood Park41Completed12 daysPhone CallCity 311
8/14/20264311 N MONTICELLO AVEIrving Park33Completed12 daysInternetCity 311
9/11/2026726 W BELDEN AVELincoln Park43Completed12 daysMobile DeviceCity 311
9/3/20252824 W BIRCHWOOD AVEWest Ridge50Completed12 daysInternetCity 311
9/3/20263258 N OAKLEY AVENorth Center32Completed12 daysInternetCity 311
9/17/20266127 N TALMAN AVEWest Ridge40Completed12 daysPhone CallCity 311
8/7/20267357 N WINCHESTER AVERogers Park49Completed12 daysInternetCity 311
7/14/20261416 W LILL AVELincoln Park32Completed12 daysInternetCity 311
8/28/20257241 S UNION AVEEnglewood6Completed12 daysPhone CallCity 311
8/28/20257241 S UNION AVEEnglewood6Completed12 daysPhone CallCity 311
9/11/20261936 N HALSTED STLincoln Park43Completed12 daysMobile DeviceCity 311
8/28/20257237 S UNION AVEEnglewood6Completed12 daysPhone CallCity 311
7/29/20263132 W DIVERSEY AVEAvondale35Completed12 daysMobile DeviceCity 311
9/15/20266608 S PULASKI RDWest Lawn13Completed12 daysMobile DeviceCity 311
9/18/20262702 N ASHLAND AVELincoln Park32Completed12 daysInternetCity 311
8/8/20254207 N MEADE AVEPortage Park38Completed12 daysInternetCity 311
9/11/20253255 W 85TH PLAshburn18Completed12 daysPhone CallCity 311
9/17/20261655 N CAMPBELL AVEWest Town1Completed12 daysInternetCity 311
8/15/20255421 N WASHTENAW AVELincoln Square40Completed12 daysMobile DeviceCity 311
9/10/202511743 S MAPLEWOOD AVEMorgan Park19Completed12 daysInternetCity 311
7/30/20265040 N WASHTENAW AVELincoln Square40Completed12 daysPhone CallCity 311
9/5/20266334 W EDDY STDunning30Completed12 daysMobile DeviceCity 311
9/13/20252339 W RICE STWest Town36Completed12 daysMobile DeviceCity 311
9/11/20253255 W 85TH PLAshburn18Completed12 daysPhone CallCity 311
9/6/20255149 W OAKDALE AVEBelmont Cragin31Completed12 daysInternetCity 311
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