RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4334 locations in the last 30 days (4514 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

58,468 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/5/20253221 W WILSON AVEAlbany Park33Completed9 daysInternetCity 311
9/21/20264500 S TROY STBrighton Park12Completed9 daysInternetCity 311
9/21/20251913 W CORTLAND STLogan Square32Completed9 daysMobile DeviceCity 311
7/28/20265230 S CORNELL AVEHyde Park5Completed9 daysInternetCity 311
9/13/20261532 E 67TH PLSouth Shore5Completed9 daysMobile DeviceCity 311
8/16/20253630 W 49TH PLWest Elsdon14Completed9 daysMobile DeviceCity 311
7/13/20262910 W GEORGE STAvondale35Completed9 daysMobile DeviceCity 311
9/6/20252259 W 107TH STMorgan Park19Completed9 daysMobile DeviceCity 311
7/29/20265417 S MELVINA AVEGarfield Ridge23Completed9 daysInternetCity 311
9/21/20256245 N NAPER AVENorwood Park45Completed9 daysInternetCity 311
9/17/20252228 N HAMILTON AVELogan Square32Completed9 daysInternetCity 311
9/22/20256924 S HONORE STWest Englewood17Completed9 daysPhone CallCity 311
8/26/20265555 S KOMENSKY AVEWest Elsdon13Completed9 daysPhone CallCity 311
9/6/20258116 S KENWOOD AVEAvalon Park8Completed9 daysInternetCity 311
6/30/20264823 N ASHLAND AVEUptown47Completed9 daysMobile DeviceCity 311
7/28/20256604 N RICHMOND STWest Ridge50Completed9 daysPhone CallCity 311
8/13/20255822 S MOODY AVEGarfield Ridge13Completed9 daysMobile DeviceCity 311
7/6/20262734 N NORMANDY AVEMontclare36Completed9 daysInternetCity 311
7/28/20256545 N RICHMOND STWest Ridge50Completed9 daysPhone CallCity 311
10/13/20256034 N MARMORA AVEJefferson Park39Completed9 daysMobile DeviceCity 311
10/13/20269631 S CARPENTER STWashington Heights21Completed9 daysMobile DeviceCity 311
9/15/20256152 S MEADE AVEClearing13Completed9 daysMobile DeviceCity 311
7/25/20266622 S CAMPBELL AVEChicago Lawn16Completed9 daysInternetCity 311
9/30/20252714 W LUNT AVEWest Ridge50Completed9 daysPhone CallCity 311
7/22/20266538 N TAHOMA AVEForest Glen45Completed9 daysInternetCity 311
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