RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4293 locations in the last 30 days (4477 reports) · Last sighting 16 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/20262759 S HAMLIN AVESouth Lawndale22Completed13 daysInternetCity 311
6/17/20262759 W 83RD PLAshburn18Completed1 dayPhone CallCity 311
9/5/20252759 W 99TH STBeverly19Completed10 daysAlderman's OfficeCity 311
6/8/20262759 W AUGUSTA BLVDWest Town36Completed6 daysInternetCity 311
4/13/20262760 W ST MARY STLogan Square1Completed2 daysAlderman's OfficeCity 311
3/27/20262762 W ST MARY STLogan Square1Completed3 daysInternetCity 311
6/18/20262763 N KENMORE AVELincoln Park43Completed5 daysPhone CallCity 311
12/7/20252763 N KENMORE AVELincoln Park43Completed2 daysMobile DeviceCity 311
10/20/20252763 N SEMINARY AVELincoln Park43Completed3 daysPhone CallCity 311
7/28/20252763 N SPAULDING AVELogan Square35Completed8 daysInternetCity 311
10/16/20262765 N KENMORE AVELincoln Park43Completed13 daysInternetCity 311
7/7/20262765 N KENMORE AVELincoln Park43Completed6 daysInternetCity 311
7/25/20252767 W WILSON AVEAlbany Park40Completed7 daysInternetCity 311
7/29/20252769 N LINCOLN AVELincoln Park43Completed6 daysInternetCity 311
9/11/20262775 N KENMORE AVELincoln Park43Completed10 daysMobile DeviceCity 311
6/6/20262775 N KENMORE AVELincoln Park43Completed2 daysMobile DeviceCity 311
8/28/202527 E 26TH STDouglas3Completed12 daysPhone CallCity 311
8/28/202527 E 26TH STDouglas3Completed12 daysPhone CallCity 311
3/16/202627 S LEAVITT STNear West Side27Completed1 dayMobile DeviceCity 311
10/31/202627 W JACKSON BLVDLoop34Open—Phone CallCity 311
8/29/20252800 N KENNETH AVEHermosa31Completed13 daysAlderman's OfficeCity 311
11/10/20252800 N MELVINA AVEBelmont Cragin30Completed3 daysPhone CallCity 311
10/30/20252800 N MELVINA AVEBelmont Cragin30Completed4 daysPhone CallCity 311
7/31/20252800 N MERRIMAC AVEBelmont Cragin30Completed8 daysAlderman's OfficeCity 311
7/31/20252800 N MOBILE AVEBelmont Cragin30Completed8 daysAlderman's OfficeCity 311
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