RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4578 locations in the last 30 days (4733 reports) · Last sighting 21 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20266126 S BISHOP STWest Englewood16Completed16 daysInternetCity 311
7/21/20256126 N NAPER AVENorwood Park45Completed11 daysPhone CallCity 311
11/3/20256126 N NAPER AVENorwood Park45Completed1 dayPhone CallCity 311
5/29/20266126 N FOREST GLEN AVEForest Glen39Completed3 daysAlderman's OfficeCity 311
7/13/20266125 W WAVELAND AVEDunning38Completed13 daysInternetCity 311
2/24/20266125 W FOSTER AVEJefferson Park45Completed1 dayPhone CallCity 311
3/2/20266125 W CORNELIA AVEDunning30Completed1 dayMobile DeviceCity 311
9/22/20256125 W BERENICE AVEDunning38Completed9 daysAlderman's OfficeCity 311
1/12/20266125 S MAJOR AVEClearing13Completed1 dayInternetCity 311
7/24/20266125 N WASHTENAW AVEWest Ridge40Completed11 daysPhone CallCity 311
1/31/20266125 N MAPLEWOOD AVEWest Ridge40Completed2 daysMobile DeviceCity 311
5/22/20266124 W ROSCOE STDunning30Completed4 daysMobile DeviceCity 311
10/5/20266124 W ROSCOE STDunning30Open—Mobile DeviceCity 311
7/26/20256124 W ROSCOE STDunning30Completed6 daysMobile DeviceCity 311
12/28/20256124 W NEWPORT AVEDunning30Completed1 dayInternetCity 311
4/25/20266124 W LAWRENCE AVEPortage Park41Completed4 daysInternetCity 311
8/1/20266124 S TRIPP AVEWest Lawn13Completed11 daysMobile DeviceCity 311
10/10/20256124 S KNOX AVEClearing13Completed10 daysAlderman's OfficeCity 311
9/2/20256124 N WINTHROP AVEEdgewater48Completed13 daysInternetCity 311
11/15/20256124 N HOYNE AVEWest Ridge40Completed2 daysMobile DeviceCity 311
12/8/20256123 S TROY STChicago Lawn15Completed1 dayMobile DeviceCity 311
9/23/20256123 N WINCHESTER AVEWest Ridge40Completed7 daysMobile DeviceCity 311
9/28/20266123 N MASON AVEJefferson Park39Completed4 daysPhone CallCity 311
10/6/20256122 W HIGGINS AVEJefferson Park45Completed9 daysMobile DeviceCity 311
11/6/20256122 W HIGGINS AVEJefferson Park45Completed4 daysMobile DeviceCity 311
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