RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4547 locations in the last 30 days (4694 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/20255142 W HENDERSON STPortage Park31Completed1 dayPhone CallCity 311
5/14/20265242 S MOBILE AVEGarfield Ridge23Completed1 dayAlderman's OfficeCity 311
4/13/20264932 N RIDGEWAY AVEAlbany Park39Completed1 dayMobile DeviceCity 311
6/9/20263834 N DRAKE AVEIrving Park35Completed1 dayPhone CallCity 311
3/24/20262512 W MEDILL AVELogan Square1Completed1 dayAlderman's OfficeCity 311
6/22/20263133 W JARLATH STWest Ridge50Completed1 dayPhone CallCity 311
5/18/20265251 S MARSHFIELD AVENew City16Completed1 dayPhone CallCity 311
12/10/20256211 S KOLIN AVEWest Lawn13Completed1 dayInternetCity 311
9/16/20263948 W OHIO STHumboldt Park37Completed1 dayPhone CallCity 311
4/22/20266600 S MINERVA AVEWoodlawn20Completed1 dayInternetCity 311
12/10/20259908 S WENTWORTH AVERoseland9Completed1 dayPhone CallCity 311
4/8/20263808 N PINE GROVE AVELake View46Completed1 dayMobile DeviceCity 311
7/21/20262149 W EASTWOOD AVELincoln Square47Completed1 dayPhone CallCity 311
12/23/20251300 N MILWAUKEEWest Town1Completed1 daySalesforce Mobile AppCity 311
6/30/20265455 N BERNARD STNorth Park39Completed1 dayInternetCity 311
10/6/20251457 W NORWOOD STEdgewater48Completed1 dayPhone CallCity 311
5/20/20266631 S DREXEL AVEWoodlawn20Completed1 dayMobile DeviceCity 311
11/24/20252916 N HARDING AVEAvondale31Completed1 dayPhone CallCity 311
6/15/20261656 N ARTESIAN AVEWest Town1Completed1 dayPhone CallCity 311
5/14/20265246 S MOBILE AVEGarfield Ridge23Completed1 dayAlderman's OfficeCity 311
6/2/20265452 N GLENWOOD AVEEdgewater48Completed1 dayInternetCity 311
8/2/20266449 S CALIFORNIA AVEChicago Lawn16Completed1 dayPhone CallCity 311
9/8/20252843 N MAJOR AVEBelmont Cragin30Completed1 dayPhone CallCity 311
4/20/202611040 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
6/16/20261616 W BALMORAL AVEEdgewater40Completed1 dayInternetCity 311
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