RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4329 locations in the last 30 days (4515 reports) · Last sighting 13 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/16/20243102 S GILES AVEDouglas4Completed12 daysInternetCity 311
8/3/20253858 S VERNON AVEDouglas4Completed2 daysInternetCity 311
9/6/20253530 S DR MARTIN LUTHER KING JR DRDouglas4Completed11 daysMobile DeviceCity 311
7/10/20243426 S CALUMET AVEDouglas4Completed6 daysInternetCity 311
9/7/20253620 S RHODES AVEDouglas4Completed10 daysInternetCity 311
8/5/20253554 S FEDERAL STDouglas3Completed7 daysPhone CallCity 311
7/10/20263630 S PRAIRIE AVEDouglas3Completed3 daysPhone CallCity 311
9/14/202540 W 33RD STDouglas3Completed8 daysInternetCity 311
6/11/20263624 S PRAIRIE AVEDouglas3Completed5 daysInternetCity 311
10/5/20263644 S DR MARTIN LUTHER KING JR DRDouglas4Completed15 daysInternetCity 311
2/5/20263000 S DR MARTIN LUTHER KING JR DRDouglas4Completed0 daysInternetCity 311
10/16/20253845 S STATE STDouglas3Completed5 daysInternetCity 311
6/17/20263630 S PRAIRIE AVEDouglas3Completed1 dayPhone CallCity 311
5/21/20263404 S GILES AVEDouglas4Completed5 daysPhone CallCity 311
6/12/20263840 S CALUMET AVEDouglas3Completed4 daysAlderman's OfficeCity 311
2/3/20263427 S MICHIGAN AVEDouglas3Completed1 dayPhone CallCity 311
9/22/20263712 S WABASH AVEDouglas3Completed9 daysInternetCity 311
6/2/2026104 E 37TH STDouglas3Completed2 daysPhone CallCity 311
6/18/20263001 S DR MARTIN LUTHER KING JR DRDouglas4Completed5 daysInternetCity 311
6/11/20263514 S PRAIRIE AVEDouglas3Completed1 dayMobile DeviceCity 311
8/18/20263641 S PRAIRIE AVEDouglas3Completed8 daysPhone CallCity 311
6/11/20263615 S PRAIRIE AVEDouglas3Completed1 dayMobile DeviceCity 311
7/21/20263628 S GILES AVEDouglas3Completed13 daysInternetCity 311
6/9/2026533 E 33RD PLDouglas4Completed1 dayPhone CallCity 311
1/12/202625 E 26TH STDouglas3Completed1 dayInternetCity 311
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