RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4441 locations in the last 30 days (4619 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/1/202510058 S LAFAYETTE AVERoseland9Completed9 daysInternetCity 311
8/13/20256147 W PATTERSON AVEDunning38Completed9 daysAlderman's OfficeCity 311
9/14/20254115 W DICKENS AVEHermosa35Completed9 daysPhone CallCity 311
7/27/20269610 S SANGAMON STWashington Heights21Completed9 daysInternetCity 311
8/5/20266600 S KENNETH AVEWest Lawn13Completed9 daysAlderman's OfficeCity 311
6/29/20264900 S HONORE STNew City15Completed9 daysPhone CallCity 311
9/8/20252315 W SCHOOL STNorth Center32Completed9 daysPhone CallCity 311
9/8/20265609 W LE MOYNE STAustin29Completed9 daysInternetCity 311
9/15/20252470 N CLARK STLincoln Park43Completed9 daysAlderman's OfficeCity 311
9/21/20253671 N ELSTON AVEIrving Park33Completed9 daysMobile DeviceCity 311
9/10/20253510 N LINCOLN AVELake View47Completed9 daysPhone CallCity 311
8/5/20251464 W OHIO STWest Town1Completed9 daysInternetCity 311
7/29/20263017 N KOSTNER AVEHermosa31Completed9 daysPhone CallCity 311
9/16/20255527 W GIDDINGS STPortage Park45Completed9 daysAlderman's OfficeCity 311
10/14/20255648 W CORNELIA AVEPortage Park30Completed9 daysMobile DeviceCity 311
9/22/20256810 S TALMAN AVEChicago Lawn16Completed9 daysPhone CallCity 311
8/19/20265839 S KOLMAR AVEWest Elsdon13Completed9 daysInternetCity 311
9/15/20252470 N CLARK STLincoln Park43Completed9 daysAlderman's OfficeCity 311
9/28/20267333 N OCONTO AVEEdison Park41Completed9 daysPhone CallCity 311
10/15/20255841 N SPAULDING AVENorth Park39Completed9 daysInternetCity 311
9/22/20252722 N SAWYER AVELogan Square35Completed9 daysMobile DeviceCity 311
9/22/2025625 W WRIGHTWOOD AVELincoln Park43Completed9 daysInternetCity 311
10/8/20257859 W ADDISON STDunning38Completed9 daysPhone CallCity 311
8/19/20265929 W 64TH PLClearing13Completed9 daysInternetCity 311
7/11/20263145 N MONTICELLO AVEAvondale35Completed9 daysInternetCity 311
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