RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4584 locations in the last 30 days (4740 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/202513107 S AVENUE NHegewisch10Completed4 daysAlderman's OfficeCity 311
2/7/20261310 N ASTOR STNear North Side43Completed2 daysInternetCity 311
9/17/20261310 N MASON AVEAustin29Completed4 daysInternetCity 311
7/13/20261310 S PLYMOUTH CTNear South Side3Completed10 daysInternetCity 311
3/3/20261310 S SAWYER AVENorth Lawndale24Completed1 dayInternetCity 311
8/24/20251310 W 107TH STWashington Heights21Completed10 daysMobile DeviceCity 311
8/11/20251310 W CHESTNUT STWest Town27Completed9 daysInternetCity 311
5/18/20261310 W MONTROSE AVEUptown46Completed8 daysMobile DeviceCity 311
8/14/20251310 W WAVELAND AVELake View44Completed8 daysPhone CallCity 311
10/1/20251310 W WEBSTER AVELincoln Park2Completed9 daysInternetCity 311
8/4/20251310 W WEBSTER AVELincoln Park2Completed1 dayPhone CallCity 311
8/15/20261310 W WESTGATE TERNear West Side34Completed2 daysInternetCity 311
6/15/20261311 N CAMPBELL AVEWest Town26Completed1 dayMobile DeviceCity 311
4/25/20261311 N CAMPBELL AVEWest Town26Completed4 daysMobile DeviceCity 311
8/22/20261311 N CAMPBELL AVEWest Town26Completed11 daysMobile DeviceCity 311
9/25/20261311 N CAMPBELL AVEWest Town26Open—Mobile DeviceCity 311
6/2/20261311 N WESTERN AVEWest Town1Completed2 daysPhone CallCity 311
7/16/20261311 N WESTERN AVEWest Town1Completed13 daysPhone CallCity 311
3/13/20261311 W BYRON STLake View44Completed4 daysInternetCity 311
8/19/20261311 W COLUMBIA AVERogers Park49Completed12 daysPhone CallCity 311
9/10/20261311 W COLUMBIA AVERogers Park49Completed1 dayPhone CallCity 311
7/6/202613123 S AVENUE OHegewisch10Completed2 daysPhone CallCity 311
8/7/20251312 N ARTESIAN AVEWest Town26Completed6 daysMobile DeviceCity 311
11/25/20251312 N DAMENWest Town1Completed1 daySalesforce Mobile AppCity 311
11/24/20251312 N DAMEN AVEWest Town1Completed2 daysPhone CallCity 311
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