RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4713 locations in the last 30 days (4866 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/29/20263130 N NOTTINGHAM AVEMontclare29Open—Phone CallCity 311
9/29/20261924 W BERENICE AVENorth Center47Open—InternetCity 311
9/29/20261415 E 65TH STWoodlawn5Open—InternetCity 311
9/29/20267200 S CALIFORNIA AVEChicago Lawn18Open—Phone CallCity 311
9/29/20262045 W SUMMERDALE AVELincoln Square40Open—Phone CallCity 311
9/29/20263310 W NORTH AVEHumboldt Park26Open—InternetCity 311
9/29/20263030 W TOUHY AVEWest Ridge50Completed3 daysPhone CallCity 311
9/29/20261015 E 60TH STWoodlawn5Open—InternetCity 311
9/29/20262549 N CLARK STLincoln Park43Open—Alderman's OfficeCity 311
9/29/20262927 S WELLS STArmour Square11Open—Phone CallCity 311
9/29/20265025 S LAWLER AVEGarfield Ridge23Open—Phone CallCity 311
9/29/20265939 S PAULINA STWest Englewood15Open—Phone CallCity 311
9/29/2026236 S GREEN STNear West Side34Completed2 daysPhone CallCity 311
9/29/20263310 N SACRAMENTO AVEAvondale33Open—Phone CallCity 311
9/29/20262936 N KILPATRICK AVEBelmont Cragin31Open—Alderman's OfficeCity 311
9/29/20266145 W PETERSON AVENorwood Park45Open—Mobile DeviceCity 311
9/29/20265019 S LAWLER AVEGarfield Ridge23Open—InternetCity 311
9/29/20263736 W 61ST STWest Lawn23Completed3 daysAlderman's OfficeCity 311
9/29/2026310 W DICKENS AVELincoln Park43Open—Phone CallCity 311
9/29/20266725 S KOSTNER AVEWest Lawn23Open—Alderman's OfficeCity 311
9/29/20263730 N WHIPPLE STIrving Park35Open—InternetCity 311
9/29/20261322 W HENDERSON STLake View44Open—Phone CallCity 311
9/29/20263742 N PACIFIC AVEDunning38Open—Phone CallCity 311
9/29/20262640 S PRINCETON AVEArmour Square11Open—Phone CallCity 311
9/29/20266517 N ARTESIANWest Ridge50Open—Salesforce Mobile AppCity 311
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