RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4405 locations in the last 30 days (4559 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20262719 W RASCHER AVELincoln Square40Completed12 daysPhone CallCity 311
8/8/20262600 W RASCHER AVELincoln Square40Completed12 daysPhone CallCity 311
8/31/20262705 W RASCHER AVELincoln Square40Completed14 daysMobile DeviceCity 311
9/15/20266300 N HERMITAGE AVEEdgewater40Completed14 daysPhone CallCity 311
9/7/20262734 W FARRAGUT AVELincoln Square40Completed10 daysInternetCity 311
10/12/20266156 N TALMAN AVEWest Ridge40Open—Mobile DeviceCity 311
9/30/20266161 N HOYNE AVEWest Ridge40Completed14 daysMobile DeviceCity 311
9/6/20264743 N MAPLEWOOD AVELincoln Square40Completed11 daysInternetCity 311
10/9/20265630 N LINCOLN AVEWest Ridge40Open—Mobile DeviceCity 311
10/3/20266534 N HOYNE AVEWest Ridge40Open—Mobile DeviceCity 311
10/3/20266536 N HOYNE AVEWest Ridge40Open—Mobile DeviceCity 311
9/6/20265100 N RAVENSWOOD AVELincoln Square40Completed11 daysMobile DeviceCity 311
10/3/20266540 N HOYNE AVEWest Ridge40Open—Mobile DeviceCity 311
10/3/20266542 N HOYNE AVEWest Ridge40Open—Mobile DeviceCity 311
10/2/20261627 W ROSEHILL DREdgewater40Open—Mobile DeviceCity 311
10/2/20261676 W EDGEWATER AVEEdgewater40Open—Mobile DeviceCity 311
8/8/20252649 W BALMORAL AVELincoln Square40Completed3 daysPhone CallCity 311
9/23/20262431 W WINONA STLincoln Square40Completed12 daysInternetCity 311
8/18/20262019 W NORWOOD STWest Ridge40Completed13 daysInternetCity 311
7/22/20262932 W EASTWOOD AVEAlbany Park40Completed12 daysInternetCity 311
8/11/20262539 W ARGYLE STLincoln Square40Completed13 daysInternetCity 311
8/11/20261670 W HOLLYWOOD AVEEdgewater40Completed13 daysInternetCity 311
8/11/20261627 W ROSEHILL DREdgewater40Completed13 daysMobile DeviceCity 311
9/20/20261818 W WINNEMAC AVELincoln Square40Completed14 daysInternetCity 311
8/6/20265145 N ASHLAND AVEUptown40Completed11 daysMobile DeviceCity 311
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