RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4393 locations in the last 30 days (4550 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20254117 N FRANCISCO AVEIrving Park33Completed11 daysAlderman's OfficeCity 311
9/17/20261454 W CHICAGO AVEWest Town27Completed11 daysInternetCity 311
8/4/20254141 N KENMORE AVEUptown46Completed11 daysPhone CallCity 311
9/8/20252252 N CLEVELAND AVELincoln Park43Completed11 daysAlderman's OfficeCity 311
8/16/20264747 W CONGRESS PKWYAustin24Completed11 daysPhone CallCity 311
9/25/20256820 S JUSTINE STWest Englewood17Completed11 daysPhone CallCity 311
7/24/20258244 S WASHTENAW AVEAshburn18Completed11 daysInternetCity 311
8/1/20268250 W BELMONT AVEDunning38Completed11 daysPhone CallCity 311
8/28/20252430 W WALTON STWest Town36Completed11 daysPhone CallCity 311
9/19/20253683 N ELSTON AVEIrving Park33Completed11 daysMobile DeviceCity 311
8/29/20253328 W CONGRESS PKWYEast Garfield Park28Completed11 daysPhone CallCity 311
10/2/20261424 W HOWARD STRogers Park49Completed11 daysMobile DeviceCity 311
9/27/20264947 W CORTEZ STAustin37Completed11 daysPhone CallCity 311
9/29/20253032 S PRINCETON AVEArmour Square11Completed11 daysPhone CallCity 311
9/25/20265949 S LOOMIS BLVDWest Englewood16Completed11 daysMobile DeviceCity 311
9/13/20254420 N MAPLEWOOD AVELincoln Square47Completed11 daysInternetCity 311
8/11/202510007 S WENTWORTH AVERoseland9Completed11 daysMobile DeviceCity 311
9/18/20254457 N MOBILE AVEPortage Park38Completed11 daysInternetCity 311
8/9/20263842 N CHRISTIANA AVEIrving Park33Completed11 daysMobile DeviceCity 311
9/6/20262746 N FAIRFIELD AVELogan Square1Completed11 daysPhone CallCity 311
9/13/20251538 E 67TH PLSouth Shore5Completed11 daysPhone CallCity 311
8/3/202511857 S ARTESIAN AVEMorgan Park19Completed11 daysInternetCity 311
7/12/20262438 N SAYRE AVEMontclare29Completed11 daysPhone CallCity 311
7/27/20265616 S KARLOV AVEWest Elsdon13Completed11 daysInternetCity 311
8/11/20255404 S WASHTENAW AVEGage Park14Completed11 daysMobile DeviceCity 311
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