RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4721 locations in the last 30 days (4884 reports) · Last sighting 10 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/26/20258400 S BUFFALO AVESouth Chicago10Completed14 daysAlderman's OfficeCity 311
4/12/202610951 S BEast Side10Completed3 daysInternetCity 311
5/16/202610635 S AVENUE HEast Side10Completed2 daysPhone CallCity 311
8/6/202611600 S AVENUE LHegewisch10Completed7 daysAlderman's OfficeCity 311
9/21/20264001 E 134TH STHegewisch10Open—InternetCity 311
10/21/20253942 E 112TH STEast Side10Completed6 daysInternetCity 311
3/3/20269841 S EWING AVEEast Side10Completed1 dayInternetCity 311
7/20/20268702 S COMMERCIAL AVESouth Chicago10Completed3 daysAlderman's OfficeCity 311
8/2/202610833 S CEast Side10Completed1 dayMobile DeviceCity 311
8/10/202513305 S BRAINARD AVEHegewisch10Completed4 daysMobile DeviceCity 311
8/11/20269854 S MANISTEE AVESouth Deering10Completed13 daysInternetCity 311
9/12/20258519 S BUFFALO AVESouth Chicago10Completed7 daysInternetCity 311
9/6/20269624 S EWING AVEEast Side10Completed11 daysInternetCity 311
9/6/20269626 S EWING AVEEast Side10Completed11 daysInternetCity 311
5/25/20263649 E 101ST STEast Side10Completed7 daysMobile DeviceCity 311
5/25/20269633 S LEast Side10Completed7 daysInternetCity 311
9/20/20268511 S BUFFALO AVESouth Chicago10Open—Mobile DeviceCity 311
9/8/202613143 S ST LAWRENCE AVERiverdale10Completed15 daysInternetCity 311
9/25/202611308 S AVENUE JEast Side10Open—Alderman's OfficeCity 311
10/18/202513335 S BALTIMORE AVEHegewisch10Completed9 daysPhone CallCity 311
7/10/202610547 S HEast Side10Completed7 daysInternetCity 311
9/25/202611657 S AVENUE NHegewisch10Open—Phone CallCity 311
11/13/202513335 S BALTIMORE AVEHegewisch10Completed1 dayPhone CallCity 311
5/10/20268623 S BALTIMORE AVESouth Chicago10Completed2 daysMobile DeviceCity 311
4/22/20262940 E 90TH STSouth Chicago10Completed1 dayPhone CallCity 311
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