RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4685 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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/4/20253500 W 60TH STChicago Lawn14Completed1 dayInternetCity 311
4/15/2026540 W DICKENS AVELincoln Park43Completed1 dayInternetCity 311
3/26/20262818 N MULLIGAN AVEBelmont Cragin30Completed1 dayInternetCity 311
4/8/20263651 W 70TH PLWest Lawn23Completed1 day—City 311
7/22/20265817 S FRANCISCO AVEGage Park15Completed1 dayPhone CallCity 311
10/28/20256136 W EDDY STDunning30Completed1 dayMobile DeviceCity 311
1/8/20266729 W 63RD STClearing13Completed1 dayInternetCity 311
4/15/20261709 W 21ST STLower West Side25Completed1 dayPhone CallCity 311
1/4/20265206 W EDDY STPortage Park31Completed1 dayPhone CallCity 311
6/2/20264953 S HOYNE AVENew City15Completed1 dayPhone CallCity 311
12/11/20252226 N KENNETH AVEHermosa26Completed1 dayPhone CallCity 311
4/30/20265503 N PAULINA STEdgewater40Completed1 dayInternetCity 311
9/30/20262837 W SUMMERDALE AVELincoln Square39Completed1 dayPhone CallCity 311
9/24/20268601 W CATHERINE AVEO'Hare41Completed1 dayPhone CallCity 311
2/16/20261037 W 97TH PLWashington Heights21Completed1 dayPhone CallCity 311
11/18/20253420 S LITUANICA AVEBridgeport11Completed1 dayInternetCity 311
4/9/20267758 S DAMEN AVEAuburn Gresham18Completed1 dayAlderman's OfficeCity 311
4/13/20263428 W GRENSHAW STNorth Lawndale24Completed1 dayPhone CallCity 311
11/20/20251039 N LARAMIE AVEAustin37Completed1 dayPhone CallCity 311
11/19/20256255 W HOLBROOK STNorwood Park39Completed1 dayPhone CallCity 311
11/4/20254714 N CENTRAL PARK AVEAlbany Park33Completed1 dayPhone CallCity 311
8/5/20264315 S PRAIRIE AVEGrand Boulevard3Completed1 dayPhone CallCity 311
10/8/20251216 W LEXINGTON STNear West Side34Completed1 dayInternetCity 311
8/4/20265339 W DEMING PLBelmont Cragin31Completed1 dayPhone CallCity 311
3/29/2026160 N LAPORTE AVEAustin28Completed1 dayPhone CallCity 311
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