RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4336 locations in the last 30 days (4492 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20266270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
8/28/20265154 N ELSTON AVEForest Glen45Completed17 daysInternetCity 311
9/18/20266183 N CALDWELL AVEForest Glen39Completed4 daysPhone CallCity 311
10/4/20266988 N TONTY AVEForest Glen45Open—InternetCity 311
7/26/20257008 N TAHOMA AVEForest Glen45Completed9 daysMobile DeviceCity 311
7/14/20267016 N TAHOMA AVEForest Glen45Completed14 daysInternetCity 311
10/2/20264870 W BERWYN AVEForest Glen39Completed7 daysAlderman's OfficeCity 311
8/15/20266240 N LEGETT AVEForest Glen39Completed11 daysInternetCity 311
9/30/20266183 N CALDWELL AVEForest Glen39Completed1 dayPhone CallCity 311
7/23/20266000 W SHERWIN AVEForest Glen45Completed14 daysPhone CallCity 311
8/15/20265920 N KOLMAR AVEForest Glen39Completed11 daysMobile DeviceCity 311
8/22/20265161 W DEVON AVEForest Glen39Completed11 daysMobile DeviceCity 311
8/17/20266330 N TRIPP AVEForest Glen39Completed9 daysInternetCity 311
7/22/20266538 N TAHOMA AVEForest Glen45Completed9 daysInternetCity 311
7/19/20266500 N TAHOMA AVEForest Glen45Completed12 daysPhone CallCity 311
9/8/20264837 W BRYN MAWR AVEForest Glen39Completed14 daysInternetCity 311
9/21/20264949 W CARMEN AVEForest Glen45Completed11 daysPhone CallCity 311
8/2/20256017 N FOREST GLEN AVEForest Glen39Completed10 daysPhone CallCity 311
8/2/20256017 N FOREST GLEN AVEForest Glen39Completed10 daysPhone CallCity 311
8/6/20254940 W WINONA STForest Glen45Completed1 dayPhone CallCity 311
7/28/20256219 N LEADER AVEForest Glen39Completed6 daysInternetCity 311
8/11/20256021 N FOREST GLEN AVEForest Glen39Completed1 dayPhone CallCity 311
9/14/20264811 W STRONG STForest Glen45Completed14 daysPhone CallCity 311
10/8/20265853 N KILBOURN AVEForest Glen39Completed1 dayPhone CallCity 311
8/12/20265924 N KOLMAR AVEForest Glen39Completed9 daysMobile DeviceCity 311
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