RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4584 locations in the last 30 days (4740 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20253247 S THROOP STBridgeport11Completed13 daysInternetCity 311
8/11/20261670 W HOLLYWOOD AVEEdgewater40Completed13 daysInternetCity 311
8/29/20255112 W NELSON STBelmont Cragin31Completed13 daysAlderman's OfficeCity 311
8/19/20261605 N TROY STHumboldt Park26Completed13 daysInternetCity 311
8/7/20256200 W 64TH PLClearing13Completed13 daysInternetCity 311
9/12/2026937 W LAKESIDE PLUptown46Completed13 daysMobile DeviceCity 311
8/29/20252800 N KENNETH AVEHermosa31Completed13 daysAlderman's OfficeCity 311
8/22/20253041 W LELAND AVEAlbany Park33Completed13 daysMobile DeviceCity 311
8/6/20252718 N LAKEWOOD AVELincoln Park32Completed13 daysPhone CallCity 311
7/30/20265928 S KILDARE AVEWest Lawn13Completed13 daysInternetCity 311
7/30/20261007 N RIDGEWAYHumboldt Park27Completed13 daysSalesforce Mobile AppCity 311
9/10/2026855 W 73RD STEnglewood17Completed13 daysPhone CallCity 311
9/12/20264357 W 83RD STAshburn18Completed13 daysInternetCity 311
10/1/20255105 W HENDERSON STPortage Park31Completed13 daysPhone CallCity 311
8/27/20251614 W GREGORY STEdgewater40Completed13 daysInternetCity 311
7/30/20266455 S KARLOV AVEWest Lawn13Completed13 daysPhone CallCity 311
8/13/20253009 W JEROME STWest Ridge50Completed13 daysAlderman's OfficeCity 311
7/31/20255734 W 64TH STClearing13Completed13 daysAlderman's OfficeCity 311
8/18/20264147 N RICHMOND STIrving Park33Completed13 daysPhone CallCity 311
8/28/20267523 S GREEN STAuburn Gresham17Completed13 daysPhone CallCity 311
9/3/20258309 S ELIZABETH STAuburn Gresham17Completed13 daysPhone CallCity 311
8/29/20255205 W CORNELIA AVEPortage Park31Completed13 daysPhone CallCity 311
9/10/20253433 W MELROSE STAvondale35Completed13 daysMobile DeviceCity 311
7/22/20251910 N KOSTNER AVEHermosa26Completed13 daysAlderman's OfficeCity 311
7/22/20251918 N KOSTNER AVEHermosa26Completed13 daysAlderman's OfficeCity 311
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