RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4430 locations in the last 30 days (4585 reports) · Last sighting 23 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/18/20267224 S ALBANY AVEChicago Lawn18Completed2 daysMobile DeviceCity 311
5/31/20262131 N KENMORE AVELincoln Park43Completed2 daysMobile DeviceCity 311
5/16/20265114 S NEWCASTLE AVEGarfield Ridge23Completed2 daysInternetCity 311
4/15/20265430 N LOTUS AVEJefferson Park45Completed2 daysMobile DeviceCity 311
2/14/20263017 W LELAND AVEAlbany Park33Completed2 daysInternetCity 311
3/7/20261307 S KOMENSKY AVENorth Lawndale24Completed2 daysMobile DeviceCity 311
9/12/20261840 W CORTLAND STLogan Square32Completed2 daysMobile DeviceCity 311
11/5/20254935 N KILBOURN AVEAlbany Park39Completed2 daysInternetCity 311
11/17/20251721 N SHEFFIELD AVELincoln Park2Completed2 daysMobile DeviceCity 311
3/23/202611358 S CENTRAL PARK AVEMount Greenwood19Completed2 daysInternetCity 311
11/1/20253424 E 106TH STEast Side10Completed2 daysPhone CallCity 311
2/21/202612432 S PRINCETON AVEWest Pullman9Completed2 daysPhone CallCity 311
3/30/20262551 W HOWARD STWest Ridge50Completed2 daysInternetCity 311
1/11/20261729 W BARRY AVELake View32Completed2 daysPhone CallCity 311
4/18/20261749 W 18TH STLower West Side25Completed2 daysPhone CallCity 311
6/8/20263129 N HARDING AVEAvondale31Completed2 daysInternetCity 311
12/31/20253675 N ELSTON AVEIrving Park33Completed2 daysInternetCity 311
6/2/20264510 N KEYSTONE AVEAlbany Park39Completed2 daysMobile DeviceCity 311
2/22/20262102 W FARGO AVERogers Park49Completed2 daysPhone CallCity 311
6/20/20265409 S NORDICA AVEGarfield Ridge23Completed2 daysInternetCity 311
1/3/20261944 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
12/22/20253700 W CORNELIA AVEAvondale30Completed2 daysAlderman's OfficeCity 311
6/6/202611402 S CARPENTER STMorgan Park21Completed2 daysInternetCity 311
11/17/20251762 N CLYBOURN AVELincoln Park2Completed2 daysMobile DeviceCity 311
5/20/20264726 N WINCHESTER AVELincoln Square47Completed2 daysInternetCity 311
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