RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4528 locations in the last 30 days (4693 reports) · Last sighting 14 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/9/20265733 S CALUMET AVEWashington Park20Completed1 dayInternetCity 311
9/22/20255733 S CALUMET AVEWashington Park20Completed9 daysInternetCity 311
8/21/20255733 S CALUMET AVEWashington Park20Completed7 daysInternetCity 311
12/2/20255733 S CALUMET AVEWashington Park20Completed1 dayInternetCity 311
7/12/20265733 N MOBILE AVENorwood Park45Completed10 daysInternetCity 311
10/6/20255733 N JERSEY AVENorth Park39Completed8 daysPhone CallCity 311
10/27/20255733 N JERSEY AVENorth Park39Completed7 daysMobile DeviceCity 311
7/19/20265732 W GUNNISON STJefferson Park45Completed8 daysMobile DeviceCity 311
1/16/20265732 W BERENICE AVEPortage Park38Completed4 daysInternetCity 311
10/28/20255732 W BERENICE AVEPortage Park38Completed3 daysInternetCity 311
10/29/20255732 S MCVICKER AVEGarfield Ridge13Completed5 daysMobile DeviceCity 311
10/4/20255732 S MCVICKER AVEGarfield Ridge13Completed11 daysInternetCity 311
10/10/20255732 S MASON AVEGarfield Ridge13Completed10 daysAlderman's OfficeCity 311
1/27/20265732 S KENWOOD AVEHyde Park5Completed1 dayInternetCity 311
11/20/20255732 S KENWOOD AVEHyde Park5Completed1 dayInternetCity 311
5/7/20265732 S GREEN STEnglewood16Completed6 daysPhone CallCity 311
9/2/20265732 N VIRGINIA AVEWest Ridge50Completed12 daysMobile DeviceCity 311
7/12/20265732 N MERRIMAC AVENorwood Park45Completed10 daysInternetCity 311
9/2/20255732 N HERMITAGE AVEEdgewater40Completed9 daysMobile DeviceCity 311
8/18/20255732 N HERMITAGE AVEEdgewater40Completed9 daysMobile DeviceCity 311
8/14/20255732 N HERMITAGE AVEEdgewater40Completed13 daysInternetCity 311
9/2/20255732 N HERMITAGE AVEEdgewater40Completed9 daysInternetCity 311
8/31/20265732 N CAMPBELL AVEWest Ridge40Completed11 daysInternetCity 311
7/9/20265731 W WARWICK AVEPortage Park38Completed7 daysInternetCity 311
7/25/20255731 W NEWPORT AVEPortage Park30Completed7 daysMobile DeviceCity 311
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