RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4542 locations in the last 30 days (4689 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/13/202511038 S LAWNDALE AVEMount Greenwood19Completed10 daysInternetCity 311
9/13/20252506 N KEELER AVEHermosa31Completed11 daysMobile DeviceCity 311
9/13/20255105 W HENDERSON STPortage Park31Completed9 daysPhone CallCity 311
9/13/20251927 N KENNETH AVEHermosa26Completed12 daysInternetCity 311
9/13/20256937 N HAMILTON AVEWest Ridge40Completed10 daysInternetCity 311
9/13/20253654 W SCHUBERT AVELogan Square35Completed10 daysInternetCity 311
9/13/20255934 W EASTWOOD AVEPortage Park45Completed11 daysInternetCity 311
9/13/20252723 W AUGUSTA BLVDWest Town36Completed4 daysInternetCity 311
9/13/20253053 N LECLAIRE AVEBelmont Cragin31Completed11 daysInternetCity 311
9/13/20255600 W WARWICK AVEPortage Park38Completed12 daysInternetCity 311
9/13/20257611 S VERNON AVEGreater Grand Crossing6Completed10 daysPhone CallCity 311
9/13/20253023 N HAMLIN AVEAvondale31Completed11 daysInternetCity 311
9/13/20255442 N WAYNE AVEEdgewater48Completed3 daysMobile DeviceCity 311
9/13/20255647 N MANGO AVEJefferson Park45Completed11 daysInternetCity 311
9/13/20255718 W WAVELAND AVEPortage Park38Completed12 daysInternetCity 311
9/13/20252446 W WALTON STWest Town36Completed4 daysMobile DeviceCity 311
9/13/20251654 1/2 N ARTESIAN AVEWest Town1Canceled6 daysMobile DeviceCity 311
9/13/20255416 S NAGLE AVEGarfield Ridge23Completed9 daysPhone CallCity 311
9/13/20254430 N HERMITAGE AVEUptown47Completed11 daysMobile DeviceCity 311
9/13/20251538 E 67TH PLSouth Shore5Completed11 daysPhone CallCity 311
9/13/202511030 S DRAKE AVEMount Greenwood19Completed11 daysInternetCity 311
9/13/20252106 W ADAMS STNear West Side27Completed10 daysInternetCity 311
9/13/20255651 W SCHOOL STPortage Park30Completed12 daysInternetCity 311
9/13/20258910 S MAY STWashington Heights21Completed10 daysInternetCity 311
9/13/20252948 N HAMLIN AVEAvondale31Completed11 daysInternetCity 311
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