RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4358 locations in the last 30 days (4540 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.

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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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/6/20265255 S PRAIRIE AVEWashington Park3Completed4 daysPhone CallCity 311
12/2/20255733 S CALUMET AVEWashington Park20Completed1 dayInternetCity 311
8/15/20255146 S DR MARTIN LUTHER KING JR DRWashington Park3Completed3 daysInternetCity 311
10/20/20265316 S MICHIGAN AVEWashington Park3Completed7 daysInternetCity 311
4/16/20265936S S MICHIGAN AVEWashington Park20Completed1 dayPhone CallCity 311
10/9/20265116 S WABASH AVEWashington Park3Completed11 daysMobile DeviceCity 311
10/27/20265152 S MICHIGAN AVEWashington Park3Open—Phone CallCity 311
9/3/20255145 S MICHIGAN AVEWashington Park3Completed8 daysAlderman's OfficeCity 311
9/12/20265116 S INDIANA AVEWashington Park3Completed11 daysInternetCity 311
8/21/20255733 S CALUMET AVEWashington Park20Completed7 daysInternetCity 311
9/9/20265726 S PRAIRIE AVEWashington Park20Completed1 dayInternetCity 311
10/26/20265100 S MICHIGAN AVEWashington Park3Open—InternetCity 311
8/13/20254659 S DREXEL BLVDKenwood4Completed5 daysInternetCity 311
7/9/20265035 S DREXEL AVEKenwood4Completed5 daysInternetCity 311
12/23/20254545 S DREXEL BLVDKenwood4Completed3 daysInternetCity 311
7/12/20261426 E 50TH STKenwood4Completed2 daysInternetCity 311
9/21/20255001 S DREXEL AVEKenwood4Completed9 daysPhone CallCity 311
10/2/20254718 S INGLESIDE AVEKenwood4Completed6 daysInternetCity 311
10/25/20261118 E HYDE PARK BLVDKenwood4Completed4 daysPhone CallCity 311
8/23/20255037 S DREXEL BLVDKenwood4Completed6 daysMobile DeviceCity 311
10/21/20265035 S EAST END AVEKenwood5Open—InternetCity 311
8/22/20254338 S ELLIS AVEKenwood4Completed7 daysPhone CallCity 311
7/5/20261261 E 46TH STKenwood4Completed4 daysMobile DeviceCity 311
10/26/20261230 E 46TH STKenwood4Completed3 daysPhone CallCity 311
7/8/20264343 S ELLIS AVEKenwood4Completed9 daysPhone CallCity 311
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