RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4620 locations in the last 30 days (4772 reports) · Last sighting 19 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.

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
8/21/20255932 W NORTH AVEAustin29Completed13 daysInternetCity 311
8/21/20251629 N DAYTON STLincoln Park43Completed14 daysInternetCity 311
8/21/20256352 S ELLIS AVEWoodlawn20Completed7 daysPhone CallCity 311
8/21/20257065 W BELMONT AVEMontclare29Completed12 daysInternetCity 311
8/21/2025637 W BELMONT AVELake View44Completed14 daysAlderman's OfficeCity 311
8/21/20253135 N NOTTINGHAM AVEMontclare29Completed13 daysInternetCity 311
8/21/20255341 N SAWYER AVENorth Park39Completed12 daysAlderman's OfficeCity 311
8/21/20256435 S LA CROSSE AVEClearing13Completed8 daysAlderman's OfficeCity 311
8/21/20253657 S ROCKWELL STBrighton Park12Completed8 daysAlderman's OfficeCity 311
8/21/20254609 S EMERALD AVENew City15Completed7 daysPhone CallCity 311
8/21/20253653 N MONTICELLO AVEIrving Park30Completed15 daysMobile DeviceCity 311
8/21/20251430 W CHESTNUT STWest Town27Completed8 daysPhone CallCity 311
8/21/20251732 N MASON AVEAustin29Completed13 daysAlderman's OfficeCity 311
8/21/20253346 N HAMLIN AVEAvondale30Completed8 daysAlderman's OfficeCity 311
8/21/2025340 S HOMAN AVEEast Garfield Park28Completed6 daysPhone CallCity 311
8/21/20253416 W 116TH STMount Greenwood19Completed6 daysPhone CallCity 311
8/21/2025728 W WAVELAND AVELake View46Completed12 daysMobile DeviceCity 311
8/21/20255147 W EDDY STPortage Park31Completed12 daysPhone CallCity 311
8/21/20251326 N CLEAVER STWest Town1Completed13 daysInternetCity 311
8/21/20254851 S SEELEY AVENew City15Completed7 daysAlderman's OfficeCity 311
8/21/2025861 W CORNELIA AVELake View44Completed14 daysPhone CallCity 311
8/21/20254411 N MAGNOLIA AVEUptown46Completed12 daysMobile DeviceCity 311
8/21/20251136 W LAWRENCE AVEUptown46Completed12 daysInternetCity 311
8/21/20255558 W EDMUNDS STJefferson Park45Completed14 daysMobile DeviceCity 311
8/21/20254844 N KOSTNER AVEAlbany Park39Completed12 daysMobile DeviceCity 311
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