RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4587 locations in the last 30 days (4755 reports) · Last sighting 12 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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20262818 N MULLIGAN AVEBelmont Cragin30Open—Phone CallCity 311
9/14/20261867 N SHEFFIELD AVELincoln Park43Open—InternetCity 311
9/14/20262429 W GRENSHAW STNear West Side28Completed9 daysPhone CallCity 311
9/14/20261129 W DRUMMOND PLLincoln Park43Completed7 daysMobile DeviceCity 311
9/14/20262106 N WHIPPLE STLogan Square1Open—Mobile DeviceCity 311
9/14/20262230 W WINONA STLincoln Square40Open—Phone CallCity 311
9/14/20263101 W WABANSIA AVEHumboldt Park26Open—InternetCity 311
9/14/20261649 N MOZART STWest Town26Open—Phone CallCity 311
9/14/20261655 N MOZART STWest Town26Open—Phone CallCity 311
9/14/20261653 N MOZART STWest Town26Open—Phone CallCity 311
9/14/20262142 W HOMER STLogan Square32Open—Phone CallCity 311
9/14/20265524 S KOSTNER AVEWest Elsdon13Completed10 daysPhone CallCity 311
9/14/20262658 W ARGYLE STLincoln Square40Completed9 daysInternetCity 311
9/14/2026912 N KEYSTONE AVEHumboldt Park37Completed8 daysInternetCity 311
9/14/20265220 S CORNELL AVEHyde Park5Open—InternetCity 311
9/14/20266858 W 65TH STClearing13Completed9 daysInternetCity 311
9/14/20269445 S LA SALLE STRoseland9Open—Phone CallCity 311
9/14/20265122 S LINDER AVEGarfield Ridge23Completed8 daysInternetCity 311
9/14/20262934 W DIVERSEY AVEAvondale35Completed7 daysMobile DeviceCity 311
9/14/20263757 W 34TH STSouth Lawndale22Open—Phone CallCity 311
9/14/20267114 N RIDGE BLVDWest Ridge50Completed10 daysInternetCity 311
9/14/20265558 S MASSASOIT AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
9/14/20261412 W BERTEAU AVELake View47Open—Phone CallCity 311
9/14/20266056 W EDDY STDunning30Open—Phone CallCity 311
9/14/20265616 N KEDVALE AVENorth Park39Open—Mobile DeviceCity 311
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