RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4477 locations in the last 30 days (4642 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/15/20261720 N BURLING STLincoln Park2Completed1 dayMobile DeviceCity 311
5/20/20261358 N DEARBORN STNear North Side2Completed1 dayInternetCity 311
4/5/20264455 N HERMITAGE AVEUptown47Completed1 dayInternetCity 311
12/9/20252658 N GREENVIEW AVELincoln Park32Completed1 dayInternetCity 311
2/2/20262616 W EVERGREEN AVEWest Town26Completed1 dayMobile DeviceCity 311
2/19/20263319 W DIVISION STHumboldt Park26Completed1 dayInternetCity 311
4/15/202610831 S HAMLIN AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
4/23/20262430 W BERWYN AVELincoln Square40Completed1 dayInternetCity 311
2/4/20263360 N PIONEER AVEDunning38Completed1 dayInternetCity 311
4/7/20262514 W SUPERIOR STWest Town36Completed1 dayInternetCity 311
2/22/2026417 E 48TH PLGrand Boulevard3Completed1 dayInternetCity 311
1/28/20261447 W BLACKHAWK STWest Town1Completed1 dayMobile DeviceCity 311
1/27/20261848 N HOYNE AVELogan Square32Completed1 dayInternetCity 311
1/22/20269436 S BISHOP STWashington Heights21Completed1 dayInternetCity 311
2/12/20262649 W BERWYN AVELincoln Square40Completed1 dayMobile DeviceCity 311
12/9/20253149 W ARGYLE STAlbany Park33Completed1 dayMobile DeviceCity 311
12/7/20254334 W WRIGHTWOOD AVEHermosa31Completed1 dayMobile DeviceCity 311
3/19/20265105 W CRYSTAL STAustin37Completed1 dayPhone CallCity 311
11/17/2025635 W BELDEN AVELincoln Park43Completed1 dayMobile DeviceCity 311
6/16/20265410 S NEW ENGLAND AVEGarfield Ridge23Completed1 dayInternetCity 311
4/14/20262634 S KILDARE AVESouth Lawndale22Completed1 dayInternetCity 311
2/10/20264442 N SPAULDING AVEAlbany Park33Completed1 dayMobile DeviceCity 311
2/10/20265937 W PATTERSON AVEPortage Park38Completed1 dayMobile DeviceCity 311
4/13/20265218 S INDIANA AVEWashington Park3Completed1 dayMobile DeviceCity 311
8/4/20262937 W WILCOX STEast Garfield Park27Completed1 dayPhone CallCity 311
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