RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4432 locations in the last 30 days (4593 reports) · Last sighting 22 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.

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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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/8/2026465 W 27TH STBridgeport11Completed10 daysInternetCity 311
6/26/20262215 N CAMPBELL AVELogan Square1Completed10 daysInternetCity 311
9/26/20252828 S PRINCETON AVEArmour Square11Completed10 daysMobile DeviceCity 311
8/4/20255445 S CHRISTIANA AVEGage Park14Completed10 daysInternetCity 311
10/11/20256808 N LEHIGH AVEForest Glen45Completed10 daysInternetCity 311
8/24/20256811 W ALTGELD STMontclare36Completed10 daysPhone CallCity 311
8/3/20265115 S LEAMINGTON AVEGarfield Ridge23Completed10 daysPhone CallCity 311
7/10/20265145 W MEDILL AVEBelmont Cragin31Completed10 daysPhone CallCity 311
9/14/20265824 S ALBANY AVEGage Park14Completed10 daysPhone CallCity 311
8/24/20267815 S KOMENSKY AVEAshburn18Completed10 daysPhone CallCity 311
9/27/20255811 N NAVARRE AVENorwood Park41Completed10 daysPhone CallCity 311
9/25/20261311 N CAMPBELL AVEWest Town26Completed10 daysMobile DeviceCity 311
9/28/20253449 S WALLACE STBridgeport11Completed10 daysInternetCity 311
7/17/20262465 N LINCOLN AVELincoln Park43Completed10 daysInternetCity 311
10/6/20265547 W HENDERSON STPortage Park30Completed10 daysMobile DeviceCity 311
9/2/20257126 S RHODES AVEGreater Grand Crossing6Completed10 daysMobile DeviceCity 311
8/4/20254508 N WHIPPLE STAlbany Park33Completed10 daysInternetCity 311
8/23/20261849 N FRANCISCO AVELogan Square26Completed10 daysInternetCity 311
7/27/20262006 S LOOMIS STLower West Side25Completed10 daysInternetCity 311
9/5/20252759 W 99TH STBeverly19Completed10 daysAlderman's OfficeCity 311
9/9/2025419 W ARMITAGE AVELincoln Park43Completed10 daysAlderman's OfficeCity 311
7/17/20265243 S MOBILE AVEGarfield Ridge23Completed10 daysInternetCity 311
9/16/202510411 S COTTAGE GROVE AVEPullman9Completed10 daysInternetCity 311
8/18/20264445 N CAMPBELL AVELincoln Square47Completed10 daysInternetCity 311
9/6/20265133 W 63RD PLClearing13Completed10 daysMobile DeviceCity 311
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