RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4644 locations in the last 30 days (4800 reports) · Last sighting 17 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/26/20251833 W NORWOOD STWest Ridge40Completed10 daysPhone CallCity 311
9/2/20251833 W NORWOOD STWest Ridge40Completed9 daysPhone CallCity 311
8/15/20251833 W NORWOOD STWest Ridge40Completed12 daysPhone CallCity 311
8/12/20251833 W PATTERSON AVENorth Center47Completed13 daysMobile DeviceCity 311
4/14/20261833 W PATTERSON AVENorth Center47Completed1 dayMobile DeviceCity 311
10/1/20251833 W SCHOOL STNorth Center32Completed7 daysInternetCity 311
9/2/20251834 N DAMEN AVELogan Square32Completed9 daysMobile DeviceCity 311
8/11/20251834 N DAMEN AVELogan Square32Completed16 daysMobile DeviceCity 311
8/3/20261834 N DAMEN AVELogan Square32Completed10 daysMobile DeviceCity 311
10/7/20251834 N KEDZIE AVELogan Square26Completed9 daysInternetCity 311
2/6/20261834 N MAYFIELD AVEAustin29Completed3 daysAlderman's OfficeCity 311
7/14/20261834 N MONTICELLO AVELogan Square26Completed10 daysInternetCity 311
9/30/20251834 N MOZART STLogan Square26Completed8 daysMobile DeviceCity 311
7/29/20261834 N ROCKWELL STLogan Square1Completed12 daysPhone CallCity 311
10/16/20251834 N WINCHESTER AVELogan Square32Completed5 daysInternetCity 311
8/25/20261834 S AVERS AVENorth Lawndale24Completed2 daysMobile DeviceCity 311
8/12/20261834 S CARPENTER STLower West Side25Completed6 daysMobile DeviceCity 311
7/13/20261834 S LAWNDALE AVENorth Lawndale24Completed4 daysMobile DeviceCity 311
11/3/20251834 W 34TH PLMcKinley Park11Completed1 dayPhone CallCity 311
8/24/20261834 W EDDY STNorth Center47Completed15 daysInternetCity 311
10/24/20251834 W THOMAS STWest Town1Completed6 daysPhone CallCity 311
7/15/20261834 W WARNER AVENorth Center47Completed13 daysMobile DeviceCity 311
8/14/20261834 W WARNER AVENorth Center47Completed4 daysPhone CallCity 311
10/2/20261834 W WASHINGTON BLVDNear West Side27Completed7 daysPhone CallCity 311
8/19/20261834 W WASHINGTON BLVDNear West Side27Completed12 daysPhone CallCity 311
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